yacht varnish for wooden floors

Practical Boat Owner

• Digital edition

Best boat varnish: 7 top options for gleaming woodwork

• Drew Maglio
• October 13, 2022

Different varnishes do different jobs. Understanding their properties will help you decide what's the best boat varnish for your woodwork. Drew Maglio explains all...

Few things are as quintessential to the archetypal sailboat as gleaming, iridescent woodwork that is indicative of a recent coat with one of the best boat varnish products on the market.

Choosing a product and methodology to apply marine varnish to achieve such results is not as simple as it would seem at first glance however, and this guide aims to make the whole process easier for novice and seasoned boat-owners alike.

First things first, what exactly is boat varnish? Put simply, varnish is a chemical solution of three parts which includes a penetrating oil, resin, and solvent.

Boat varnish for exterior use, aka. “spar varnish” — aptly named because it was designed and envisioned as a flexible protective coating to protect a yacht’s wooden spar in the harsh (outdoor) marine environment — both protects and beautifies a vessel’s wood parts.

It does so by sealing the wood with a somewhat hard, yet flexible, clear protective barrier that can last up to three years of UV and element exposure in temperate climates for the most durable two-part product formulations.

These days, most high-end boat varnishes use tung oil and an alkyld or polyurethane resin. Of the two types of resin, polyurethane — either one or two part — is going to be much more durable and resistant to UV, abrasion, fuel/solvent spills, and impacts.

While a two-part product cannot be applied over a one-part product, a two-part product is going to last much longer and be far more durable. Hence for high traffic areas like cabin soles, a two-part polyurethane product cannot be beat for longevity and durability.

Boaters should be aware that the most onerous task of applying boat varnish is the surface prep, which requires removing all flaking previous coatings by sanding, washing with solvent to degrease the surface, in addition to taping nearby areas to keep the varnish off.

Because of that, I highly recommend using quality products over cheaper, lower cost options which will mean your boat needs revarnishing far more often.

International Perfection Plus two-part varnish

Best polyurethane boat varnish

International Perfection Plus is a well-known two-pot polyurethane

International Perfection Plus (sold in the US under the Interlux brnad) is arguably the best overall marine spar varnish on the market. This two-part polyurethane formulation is not only the most aesthetically spectacular, but also the most durable and longest lasting when exposed to UV.

This two-part product is applied to bare wood after careful sanding and degreasing and can be rolled/brushed or sprayed. It uses a proprietary Interlux thinner and one’s results will be excellent if one follows the recommended procedures to the “t.”

Of all the boat varnish products on this list, this two-part product is probably the least DIY-friendly.

Reasons to buy

• Most durable marine varnish in terms of hardness and flexibility • Best UV resistance • Most beautiful (glossy) varnish if applied properly • Hardness and longevity makes it a prime contender to redo cabin soles and floor boards (after proper surface prep)

Reasons to avoid

• Difficult application for inexperienced laymen • Expensive

Buy International Perfection PLUS two-part varnish on Amazon (UK)

Buy International Perfection PLUS two-part Varnish on Gael Force Marine

Buy Interlux Perfection PLUS two-part varnish on Amazon (US)

Buy Interlux Perfection PLUS two-part varnish on West Marine

Note: We may earn a commission when you buy through links on our site, at no extra cost to you. This doesn’t affect our editorial independence.

Epifanes clear varnish.

Epifanes Clear Varnish includes tung oil and alkyd

Epifanes offers quality marine paints and varnishes at reasonable prices and their Clear High Gloss Varnish is no exception. With 64% solids content (tung oil) and an alkyd base, this varnish is sure to be brilliant in terms of gloss with reasonable durability and longevity.

With one-part alkyd products, boat owners can expect up to two years of protection before maintenance is required if left out in the elements year-round. This product can be brushed, rolled, or sprayed.

• Affordable, quality one-part product • High solids content results in very glossy finish • Relatively easy to apply and achieve satisfactory results

• Not as much UV protection as other offerings • Not as impact or abrasion-resistant as other offerings

Buy Epifanes Clear Varnish on Amazon

Buy Epifanes Clear Varnish on West Marine

International Paints are also sold in the US under the Interlux brand

International Schooner Premish Varnish

A traditional marine spar varnish — albeit a good one — is Interlux’s Schooner Varnish.

With an alkyd base, 47% of tung oil solids, and UV inhibitors to boot, this product is a well-balanced one-part product that is suitable for a variety of uses. This product can be brushed, rolled, or sprayed.

• Affordable, quality one-part product • Well-balanced product in terms of UV protection and solids content • Relatively easy to apply and achieve satisfactory results

• More expensive than Epifanes • Not as impact or abrasion-resistant as some other offerings • Not as much UV protection as some other offerings

Buy International Schooner Varnish on Amazon (UK)

Buy International Schooner Varnish on Gael Force Marine

Buy Interlux Schooner Varnish on West Marine

Total Boat Lust High Gloss Marine Varnish

Best value boat varnish

In recent years, Total Boat has become very popular offering products comparable—and sometimes superior—to the “big three” of Interlux, Petit, and Epifanes, at a fraction of the cost and their “Lust High Gloss Marine Varnish” is no exception. This one-part formulation uses linseed oil and a modified polyurethane base.

• Very affordable one-part proper “marine” varnish • Does not require sanding • Comes in matte for those seeking a satin finish • One-hour re-coat time

• Tends to cure quicker than most varnishes and therefore can cure before properly “flowing out” • Requires 6-8 coats

Buy Total Boat Lust High Gloss Marine Varnish on Amazon (US)

Buy Total Boat Lust High Gloss Marine Varnish on Walmart

Cetol Marine Wood Finish

Best boat varnish for external teak

Cetol has been making alternative wood finishes for a long time. While this product does not have the aesthetic beauty of freshly applied gleaming varnish, it lasts far longer and stands up to UV better than every one-part varnish on this list.

When I had peeling varnish on my 1987 Ericson 38-200 sailboat moored in the tropical Florida Keys, I elected to use Cetol’s “Natural Teak” offering in lieu of varnish and found it incredibly easy to apply and long-lasting, requiring no surface prep to speak up but a quick hand sand and power wash. For outside teak, Cetol cannot be beat.

• Incredibly easy to achieve satisfactory results • Affordable • Long-lasting even when exposed to UV

• Not as beautiful as real varnish • Softer and less durable to impact/abrasion compared to most varnishes, especially polyurethane formulations

Buy Cetol Marine Wood Finish on West Marine

Miniwax Helmsman Spar Urethane

The last product featured on our list is Miniwax’s one-part polyurethane spar varnish. While not the most beautiful finish available, this product is durable (hard and abrasion-resistant), easy to use, and very affordable, making it a good choice for touching up one-part varnishes inside a boat’s cabin.

For repairing, touching up, or even redoing cabin soles, this would also be a decent budget option and therefore is included on this list. Unlike the many UV-resistant offerings on this list, Miniwax Helmsman is not very UV-resistant and therefore is not recommended outdoors.

• Very affordable, even for a gallon • One-part polyurethane enhances durability and longevity over alkyd-based products • Good for sailors on a budget needing to repair and touch up existing interior varnish

• Not as beautiful as alkyd-based marine spar varnished • Not very UV-resistant • Yellows in sunlight

Buy Miniwax Helmsman Spar Urethane on Amazon (US)

Hempel Dura Gloss

Best solvent-based boat varnish

Hempel Dura Gloss Varnish is a urethane modified alkyd, ideal for interior use

Hempel’s Dura Gloss Varnish is a urethane modified alkyd, ideal for interior use

On the downside, alkyd varnishes lack resistance to abrasion and usually only one coat can be applied per day, which can make varnishing a drawn out process.

The more expensive types are formulated to speed up cure times, improve gloss retention and generally last longer.

Buy Hempel’s Dura-Gloss Varnish on Amazon

Varnish properly applied to brightwork is a joy to behold. Photo: Thornton Cohen/Alamy

Which type of boat varnish to choose?

Varnishing often appears to be a simple task, but there’s a bewildering choice of boat varnishes on the market, writes Rupert Holmes.

An understanding of the qualities of different types of varnish is needed to choose the optimum one for each purpose. This is particularly true for exterior woodwork which has to withstand the ravages of sun, rain and frost.

There are only a few basic types of varnish, although in many cases hybrid products are available, particularly alkyd/ tung oil and alkyd/modified urethanes that can offer a wider range of desirable properties.

Polyurethane boat varnish

Polyurethane varnishes are a harder option with good wear resistance, but they lack the flexibility of alkyds. In addition, they tend to sit more on the surface of the timber, so often do not adhere as well to the substrate, which can make them prone to flaking and chipping.

The lack of flexibility makes a pure polyurethane unsuitable for traditionally planked boats, but it can be ideal for plywood , as well as for cold moulded and strip planked hulls.

Polyurethanes are available as both one-pot and two-pot products, the latter giving a harder coating and faster cure, which allows multiple coats to be applied in one day.

Article continues below…

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If you need to save the varnish overnight, take a look at this top tip on preserving two-part varnish in the fridge. However, they are a much more expensive option.

N.B. One-pot polyurethane can be applied over two-pot varnish but not the other way round.

Ultra-flexible single-pot polyurethanes, such as Coelan have an elasticity of more than 300%. It can also seal cracks, is highly resistant to impact damage and doesn’t need overcoating for several years and can last twice as long as traditional varnishes.

The biggest downside is that it’s four or five times more expensive than typical basic alkyd varnishes, so up-front costs are higher, although its long term performance means the total cost difference will be smaller.

Many boat varnish products can be painted, sprayed or rolled

Tung oil varnish

Tung oil is also frequently used in traditional varnishes: it soaks in well and, although a pure tung oil product will usually cure very slowly, the final finish is very tough.

Solvent-based varnish

Traditional solvent-based one-pot alkyd varnishes are ideal for use with traditionally built wooden boats. The coating is soft but flexible, which makes it resistant to cracking when used on timber that expands when wet and contracts in dry summer weather. Additionally, the initial coats tend to soak into the timber effectively.

Epoxy resin

Epoxy resin can also be used to coat timber, but generally has poor resistance to ultra-violet light, so a varnish needs to be applied over the top. Beware inexpensive ‘yacht’ varnish sold in DIY stores – the low prices are usually easy to explain in terms of extended drying times or poor long-term performance when used outside.

Dealing with surface damage? Don’t delay!

Whatever type of varnish is used, don’t delay on sealing any areas of damage. The key priority is to keep water out, so don’t wait until you have time and suitable weather for a full repair – touch in the damaged area immediately.

This may not have a silky smooth finish initially, but don’t worry. Even if it’s a few weeks before you’re able to do a proper fix you know there won’t be any further degradation.

Top boat varnish tip

A useful tip is to clean out one of the small match pots DIY stores sell to enable customers to test household colour schemes and fill it with varnish. They have a brush built into the lid, which never needs to be cleaned, thus making a quick touch up of damage a task that only takes a couple of minutes.

Find out how to get the best finish with these 8 top tips for varnishing .

Didn’t find what you’re looking for? Head to Amazon’s dedicated boating page for more marine products.

How to Use Yacht Varnish? (A Step-by-Step Guide)

Are you looking for a way to give your boat a polished, professional finish? Yacht varnish provides a layer of protection and a beautiful shine that wont fade over time.

In this step-by-step guide, well explain what yacht varnish is, the benefits of using it, and how you can apply it to your boat.

Well also discuss preparation, application, drying, and sanding between coats, so you can be sure your boat is looking its best.

So, if youre ready to learn how to use yacht varnish, lets get started!.

Table of Contents

Short Answer

Yacht varnish is a protective coating used to seal and protect wood surfaces on boats.

To apply yacht varnish, start by sanding the wood surface with a fine-grit sandpaper.

Then, apply a thin coat of the varnish with a brush, working in long, even strokes.

Allow the varnish to dry for 24 hours before applying a second coat.

Finally, sand the surface with very fine sandpaper before buffing it with a soft cloth.

What is Yacht Varnish?

Yacht varnish is a specialized wood finish designed to protect outdoor wood surfaces from moisture and UV damage.

It typically consists of a blend of resins, oils, and solvents that provide a tough, yet flexible coating, which is ideal for protecting boat decks, outdoor furniture, and other wood surfaces that are exposed to the elements.

Yacht varnish also provides a glossy, attractive finish that enhances the beauty of the wood.

Unlike paint, yacht varnish does not completely cover the wood, allowing the natural grain of the wood to show through.

It is also relatively easy to apply and maintain, making it a popular choice for marine and outdoor wood surfaces.

Benefits of Yacht Varnish

When it comes to protecting outdoor wood surfaces, yacht varnish is an excellent choice.

Not only does it protect the wood from moisture and UV damage, but it also adds a beautiful shine and luster to the wood.

Yacht varnish is a long-lasting coating that can provide years of protection under the right conditions.

It is also easy to apply and can be used on a variety of wood surfaces, including boats, decks, and other outdoor wood surfaces.

When applied correctly, yacht varnish offers many benefits.

It forms a protective barrier against moisture and UV damage, preventing fading, cracking, warping, and other damage that can occur with prolonged exposure to the elements.

The coating also helps keep the wood from rotting, which can be an issue if the wood isn’t properly sealed.

Finally, the varnish adds a beautiful shine and luster to the wood, making it look like new.

Yacht varnish is also easy to apply and can be used on a variety of wood surfaces.

It is a great choice for any outdoor wood surface, including boats, decks, furniture, and more.

It is also relatively inexpensive and can be found at most home improvement stores.

With the right application, yacht varnish can provide years of protection and a beautiful finish to any outdoor wood surface.

Preparing the Wood Surface

Before applying yacht varnish, it is important to properly prepare the wood surface.

The surface should be thoroughly cleaned and dried, and any old varnish should be removed.

Sanding the wood will also help to ensure a smooth, even finish.

It is important to use the correct type of sandpaper for the project.

For instance, a medium-grit sandpaper is suitable for most wood surfaces, while a finer grit may be necessary for surfaces that require a more delicate finish.

Once the surface is prepared, it should be wiped down with a damp cloth to remove any dust or debris.

This will help ensure a successful application of yacht varnish.

Applying the Varnish

When it comes to applying yacht varnish, its important to understand the steps involved in the process.

First, the wood surface should be clean, dry, and sanded.

This ensures that the varnish will adhere properly and will provide maximum protection.

Next, apply a thin coat of varnish with a natural-bristle brush.

This helps to ensure even coverage and minimal brush strokes.

Allow the varnish to dry before applying a second coat.

Its important to allow the varnish to dry completely before applying any additional coats.

Sand lightly between coats to help ensure an even surface.

Additional coats should be applied as needed, but always be sure to allow the varnish to dry completely before exposing the surface to the elements.

With proper application, yacht varnish will protect your outdoor wood surfaces for years to come.

Allowing the Varnish to Dry

When it comes to yacht varnish, it is important to allow the varnish to dry completely before exposing the surface to the elements.

This will ensure that the varnish is properly bonded to the wood and will provide optimal protection from moisture and UV damage.

It is best to allow the varnish to dry for at least 24 hours before applying a second coat.

The drying time will also depend on the temperature and humidity of your environment, so it is important to allow for extra time if these conditions are not ideal.

Once the varnish is dry, it is recommended to lightly sand the surface before applying a second coat.

This will help to ensure that the varnish bonds properly and that the finish is even and smooth.

If additional coats are needed, the process should be repeated.

It is important to allow the varnish to dry completely between each coat, as this will ensure that the varnish fully bonds with the wood.

For best results, allow the varnish to dry for at least 48 hours before exposing the surface to the elements.

By allowing the yacht varnish to dry completely, you can be sure that the wood is properly protected and that the finish will last for years to come.

Sanding between Coats

Sanding between coats is an important step when applying yacht varnish.

After each coat of varnish is applied and has dried, the surface should be lightly sanded to remove any imperfections.

Sanding helps create a smooth, even finish and provides more effective protection against moisture and UV damage.

It also helps ensure that the next coat of varnish adheres properly to the surface.

When sanding between coats, use a fine-grit sandpaper (preferably around 320-400 grit) and sand in the direction of the wood grain.

This helps prevent scratches and other damage to the wood.

Be sure to only sand lightly, as sanding too aggressively can damage the wood and reduce the effectiveness of the varnish.

After sanding, use a clean cloth or brush to remove any dust or debris from the surface.

This will help ensure that the varnish adheres properly and provides the best possible protection.

Once the surface is clean, apply the next coat of varnish as normal.

With proper sanding between coats, yacht varnish will provide effective protection and lasting results.

Applying Additional Coats

Once you have applied the first coat of yacht varnish, it is important to apply additional coats for the best protection.

Depending on the specific product you are using, you may need to apply anywhere from two to seven coats.

It is important to allow the first coat to dry completely before applying any additional coats.

When applying additional coats, it is recommended to lightly sand the surface between each application.

This will help ensure a smooth, even finish and allow the varnish to adhere better.

After sanding, be sure to remove any dust or debris before applying the next coat.

When applying multiple coats of yacht varnish, it is important to use the same type of brush and same technique each time.

This will help ensure a consistent finish.

For example, if you used a natural-bristle brush when applying the first coat, it is recommended to use the same type of brush for subsequent coats.

Additionally, use long, even strokes when applying the varnish.

It is important to note that you should avoid applying too many coats of yacht varnish.

Too many coats can cause the varnish to become too thick and may make the surface appear uneven.

Generally, three to four coats should be more than enough.

Once you have finished applying the desired number of coats, allow the varnish to dry completely before exposing the surface to the elements.

With proper application and care, yacht varnish will help protect your outdoor wood surfaces for years to come.

Final Thoughts

Yacht varnish is a great way to protect your outdoor wood surfaces from moisture and UV damage.

Its important to apply yacht varnish correctly in order to get the best results.

Start by preparing the wood surface, then apply a thin coat with a natural-bristle brush.

Allow the varnish to dry before sanding and applying additional coats as needed.

With proper application, you can enjoy your outdoor wood surfaces for years to come.

Now that you know how to use yacht varnish, why not give it a try on your next project?.

James Frami

At the age of 15, he and four other friends from his neighborhood constructed their first boat. He has been sailing for almost 30 years and has a wealth of knowledge that he wants to share with others.

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What’s the Best Varnish for Your Yacht?

Looking for the  best yacht insurance ? Buy your  sailing yacht insurance  online at Admiral Marine, or contact our expert team for advice.

Varnishing your yacht is an essential part of its care and maintenance. The benefits are twofold: yacht varnish protects your boat from the elements, while also giving it a beautiful shiny finish. But with so many different yacht and marine varnishes to choose from, it can be difficult to know which one is best for your boat.

In this article, we’ll run through some of the most popular types of yacht varnish on the market to help you choose the right option.

What is Yacht Varnish?

Yacht varnish is an extremely durable solvent-based coating that is designed to protect the wood that yachts are made of and stop it decaying over time. Most varnishes are made up of a penetrating oil, resin and solvent. Although most yacht varnish is applied with a brush, it is possible to buy yacht varnish spray.

Different Types of Yacht Varnish Finish

There are many different types of finish to choose from, so you’ll need to know a little about them to decide which is the best yacht varnish for you.

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Yacht Varnish Brands

There are various brands that produce yacht varnish. Here are a couple of the most popular:

Screwfix Yacht Varnish

Screwfix is a retailer in the UK that sells a variety of products, including hardware and building supplies. They may carry different brands and types of yacht varnish. Yacht varnish provides resistance to water, UV rays, and other environmental elements. Yacht varnishes often contain additives to enhance their durability and performance in marine conditions.

Ronseal Yacht Varnish

A durable, long-lasting marine varnish for wood that flexes with the movement of the wood and resists peeling and cracking. This varnish is slightly more pricey than the Screwfix varnish, but gets great reviews. You can buy the Ronseal brand of yacht varnish in B&Q and other retailers.

How to Varnish Your Yacht

Varnishing a yacht is fairly straightforward, if a little time-consuming. First you’ll need to carefully sand down the entire surface that you want to varnish to get it looking smooth. Then use a soft brush to wipe off any excess dust and debris, since you don’t want it getting trapped in the varnish.

Finally, use a paintbrush to coat the yacht with varnish. Leave it to dry for the recommended amount of time on the tin, then apply additional coats as required. Always check the instructions of your varnish type, and if unsure consult with an expert before starting.

Yacht varnish is solvent-based and contains toxic chemicals, which means it should not be used for varnishing animal enclosures (for example, rabbit hutches or reptile enclosures).

• What is yacht varnish used for? Yacht varnish is used for sealing and protecting wood on boats and yachts. It is also commonly used for outdoor items such as wooden doors, window frames or pergolas.
• What type of varnish is yacht varnish? Yacht varnish is a solvent-based outdoor varnish that is extremely durable. It is usually made up of tung oil and polyurethane resin. 
• What is the best varnish to use on a boat? The type of varnish that is best for your boat will depend on the type of wood your boat is made from and the finish you are looking for. Tung oil varnish is a safe bet for most boats, or you may prefer to use a one-part polyurethane varnish for added durability.
• What is the difference between yacht varnish and outdoor varnish? In general, yacht varnish dries quicker and is designed for marine conditions, so it’s likely to be more durable than outdoor varnish. However, yacht varnish is unlikely to have an anti-slip formulation, making it unsuitable for decking around the home.

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Six-Month Checkup: Long-Term Boat Wood Finish Exposure Test

Testers rate 53 varnishes and varnish alternatives in our quest for the ideal exterior wood finish..

Do you ever wonder why its called “wood finish?” Youre never “finished” with it. Unfortunately, that rings true for most boat maintenance tasks. With that harsh reality in mind, we set out in 2007 to find the best exterior wood finish on the market, one thats durable and easy to apply.

Since then, weve reported on and rated the application and original finish of more than 50 products in our long-term exposure test. In the August 2007 issue, we introduced the one-part test varnishes, followed by the initial report on synthetics and teak treatments (varnish alternatives) in the October 2007 issue, and two-part varnishes in the December 2007 issue. In April 2008, we wrapped up the application reporting with teak oils and stains.

After multiple delays, including two brushes with tropical storms, we mounted the test rack outdoors last summer to begin the exposure test. (See “How We Tested.”) This report takes a look at how the test panels are faring after six months facing the elements on The Rack (pictured above), the moniker weve given to our test set-up.

What We Tested

Practical Sailor

So in our quest for the Holy Grail of wood protectors, we refrained from limiting the test to a single type of coating and are looking for a wood finish all-star. However, to make the data easier to digest, weve broken the test field into four categories-one-part varnishes, two-part varnishes, synthetics and treatments, and sealers and oils. This apples-to-apples and apples-to-oranges comparison, we hope, will answer that often-asked reader query: “What wood finish should I use?”

The number of coatings on the market today is mind-boggling, hence the dozens of products in this evaluation. And, as with bottom paint, delving into formulation differences and the science behind the magic tends to only muddy the waters.

So when choosing a wood finish, knowing the basic characteristics of each finish type is helpful in determining which best matches your aesthetic tastes, maintenance appetite, and protection needs.

Another downside to these hard coatings is that they may crack or peel over time, requiring spot maintenance or stripping and re-applying. A glossy, mirror-like finish also tends to show nicks and scratches more readily than lower-gloss or soft finishes.

Two-part varnishes offer a more abrasion-resistant finish, but that super-hard shell means sanding for touchups is more of a headache. The hard barrier also means the coating will blister if moisture migrates up through fastener holes, so epoxying the holes and resetting fasteners before varnishing is a good idea.

In short: Application and prep tend to be arduous, as does re-applying, but these are more durable than soft coatings and offer that classic, mirror-like finish.

Synthetics and Stains:

Synthetics and stains penetrate deep into the wood, and are more flexible than varnish, so they allow the substrate to breathe and will not crack or peel. Many synthetic finishes have added pigments that can turn the wood red, yellow, or an opaque brown. Considered varnish alternatives, some combine an oil-based bottom coat and a glossy sealer coat to offer the deep penetration of an oil and a hard varnish-like shell.

Synthetics and stains come in a range of glosses, but rarely will have the high-gloss wet look of a varnish. Opaque stains have more solids, which mask the woods grain more than semitransparent products but claim to offer better protection from harmful UV rays, the nemesis of a clear varnish.

In short: Synthetics and stains are a breeze to apply, maintain, and re-apply, but may not last as long as a hard varnish finish.

Teak oils and sealers:

What sets a teak oil and a teak sealer apart is the amount of solids in the product. Sealers usually have a higher percentage of solids, providing better protection from UV light and allowing the coating to build up faster on the substrate. They also last longer than oils, typically.

How We Tested

The focus of this exterior wood finishes all-star test is to evaluate three things: a products ease of application; the integrity of its gloss and appearance; and how it fares over time under real-world conditions. These results will offer a larger picture of which type of wood finish has the most longevity and which products stand out among their peers.

Except for a number of latecomers, the products were applied to panels cut from the same bare teak stock. Testers did not note any irregularities in performance that might be attributed by differences in wood stock.

Each product was applied per manufacturers instructions, and testers rated each ones ease of application-how smoothly the product went on, how complete the instructions were, and how simple the process was. Each product and each panel were assigned a number so that judging could be done blindly.

For the varnishes, testers evaluated and rated the original gloss shine and reflective qualities. Because the other coatings often have matte or semi-gloss finishes, they received no “original gloss” rating.

Last summer, the panels were mounted on a rack that was set up at a 45-degree angle in an unobstructed area on the roof of the Practical Sailor workshop in Sarasota, Fla. This ensured that all panels received the same amount of exposure to the weather and UV rays. A portion of each mounted panel was covered so testers would have a control to compare the weathered area and original finish over time. When rating the panels, testers removed the covers and rated each for coating integrity, color, and gloss retention.

Because our test setup lacks a way to simulate sea-spray-and baked-on salt water can shorten a coatings lifespan-weve put some top finishes into service aboard test boats. Testers will continue to regularly check the panels and test boat applications, and well report the results every six months or so.

How We Rated

After six months of weathering the South Florida elements, the panels were rated for coating integrity, color retention, and gloss retention.

Coating integrity ratings took into account the entire panel. Excellent ratings were given only to those with a totally uncompromised coating.

Color and gloss retention ratings are relative to the panels original finish, not the finish of other coatings. So although a panel may have had only a Fair rating for its initial gloss, if it maintained that same level of gloss for six months, it earned an Excellent for gloss retention.

Initial gloss and ease of application ratings are relative to the field within each coating category, and these were assigned immediately after the panels were coated.

Recommended varnishes for a single season earned three or more “Excellent” ratings in the following categories: ease of application, coating integrity, color retention, and gloss retention. Recommended varnish alternatives earned at least two Excellent ratings, and a Good or better for coating integrity.

Because no oil or sealer performed well enough after six months to earn an Excellent, we recommend the only one that rated above Poor on coating integrity-Star brite Tropical Teak Sealer-for a season of protection.

Panels with Poor coating integrity were pulled from the test. Most of these were teak oils, which testers did not expect to make it through a full season of exposure.

What We Found

So far, our findings support our past tests and real-world experience: If you want a multi-season coating, oil is not the finish to use. Teak oils need to be re-applied every few months. Like woods natural oils, they dry up and wear away when exposed to UV and saltwater. When we started this exposure test, we expected them to be the first to get voted off the test rack, and so it was.

Star brite, the maker of multiple teak oil products, claims users can expect an oil to last three to four months in conditions like those found in Florida or up to six months in northern locales. The Star brite teak sealer lasted longer than other oils and sealers, implying that its higher solids content does offer better UV protection.

The finish categories with the highest ratings after a single season were the varnishes. All but two one-part varnishes (Coelan and HMG Coma Berenice) and two two-parts (Bristol Finish and Honey Teak) rated Excellent for coating integrity, and all but one rated Good or better for color and gloss retention. Both the Bristol and Honey Teak had only a slight loss of coating, and so, combined with their other ratings, are still in the running for long-term protection.

Seven one-part and one two-part (Honey Teak) varnishes did not fade or change color. All synthetics, oils, and stains had some color change. In some instances, the color change was actually preferred by testers. The Amazon Teak Lustre panels, for instance, lost some of their opaqueness, and turned from an opaque brown to a lighter blond, while retaining much of their initial gloss.

A few facts worth noting: The West Marine WoodPro Plus Semi-gloss is actually a re-branded Epifanes Rapid Clear. And Interluxs Jet Speed, which was rated well at the six-month mark, is not manufacturer-recommended for exterior use, unless its overcoated with a UV-filtering finish like Interlux Schooner.

Overall, the Interlux Sikkens Cetol products fared quite well after six months. The panel with Cetol Natural (without gloss), however, weathered slightly more than the other Cetol panels. On our test boats hatch trim (below), the Cetol Natural lasted about eight months in the South Florida sun before needing to be recoated. According to Interlux, their tests show that it performs as well as the more opaque Cetol Marine and Marine Light. The Cetol Natural, which has a more transparent finish than its sister products, contains a different blend of pigments than the others, and this could be why it didnt hold up quite as well in our test. Testers still prefer its more natural look to the opaque Marine and Marine Light.

The products that have been removed from the test rack are: Deks Olje No. 1, Interlux Premium Teak Oil, Star brite Premium Teak Oil, MDR Amazon Golden Teak Oil, Ace Wood Royal Deck and Siding Stain Oil, Semco, Crab Coat Gloss, Le Tonkinois Bio Impression, Dalys Teak Oil, and Nanovations Teak Guard.

Teak Guard and Crab Coat were the only non-teak oil products to be pulled from testing at six months. According to its maker, Crystalac Co., the Crab Coats early failure is unusual. Though weve ruled out application error as the cause, we plan to give the varnish alternative a second chance and will apply it to the teak trim on one of our test boats.

Teak Guard was re-formulated in 2008, after this test began. However, its maker claims our coating should have lasted six to 12 months and attributed the mildew on our test panel to the breakdown of the coatings waterproof top layer. The company says that re-applying the finish sooner would have prevented the mildew.

Conclusions

Selecting a wood finish (or nothing at all) comes down to what appeals to a boat owners sense of aesthetics, patience for prep and application, tolerance for regular maintenance, and proclivity for sanding and scraping. Other factors to be considered concern the area to be finished and its use, handling, and the traffic its likely to see. Obviously, we don’t recommend coating your teak decks with a slick varnish. But, if youre looking to spiff up cockpit trim or a toerail, and prefer an upfront investment of time and energy for the longevity payoff, choose one of the top one-part varnishes or synthetics with an overcoat. If youre on a budget and want high gloss, the Ace Spar Varnish and Minwax Indoor/Outdoor Helmsman Spar Urethane will suit your needs.

For those brightwork aficionados looking for a wet, high-gloss look, who enjoy the labor of love that is two-part varnish, any of the two-part products would work. Our top picks of this group so far are Nautiking Nautithane, Interlux Perfection, and Honey Teak. If youre looking for the most durable oil or sealer, Star brite teak sealer is a good choice.

For spots where a slippery-when-wet finish is not feasible, check out the top synthetics or teak sealer. We also recommend these for boat owners with little time or energy to spend on brightwork, those with an aversion to sanders and scrapers, and those less than deft with a brush.

For decks, our favorite is Semco. It doesn’t darken the wood, so decks stay cooler. Although it will need to be re-applied every few months, depending on conditions and usage, but reapplication is painless, and it fades away rather than leaving a partially failed coating that requires sanding. Most teak-oil makers, including Star brite, recommend scrubbing the deck with a teak cleaner before re-applying. With Semco, however, only regular washing is needed.

Any of the Recommended products on pages 24-25 are good choices for single-season exterior wood finishes. To see which ones can go the distance and last for multiple seasons, stay tuned for our one-year report.

Eight teak oils and sealers round out our test group. Often favored for their ease of application and resistance to blistering or cracking, oils and sealers are not as durable as other finishes. They require frequent re-application, every three to four months in most locations. They dry fast and penetrate deep into the wood, but they lack the hard protection of varnish. The thinner (less viscous) of these finishes make the most of teaks natural nonskid properties. Some teak oil critics maintain that this type of finish attracts dirt and encourages mold and mildew growth, which we found to be true in some of our test panels. This test field includes 17 products that fall into the synthetics and teak treatments category. The top selling point for these is their ease of application: They require fewer coats than varnish, dry faster, and require little or no sanding between coats. These softer finishes will need to be reapplied more frequently than varnish but less frequently than teak oils. : We tested 22 one-part varnishes and six two-part systems. One- and two-part varnishes are clear, hard coatings that allow the woods natural beauty to show through. They come in a variety of glosses, from the classic wet look to a matte finish, which is less slick and has less glare. Prep and application are more labor-intensive than with other finishes and require a more careful hand. But a high-quality varnish will typically last longer than other coatings types. They have the benefit of less frequent application and less frequent maintenance, but once the coating integrity is compromised, repairs may require stripping the wood totally. Two-part systems, which involve mixing a base and curing agent, require the most application effort, but are generally regarded as being more durable than single-parts. defines an ideal exterior wood finish as one that is relatively easy to apply, easy to maintain, lasts for multiple seasons, and wont break the bank. Thats a lot to ask, we know.

• Practical Sailor Value Guide: Varnish Alternatives, Teak Oils, and Teak Sealers
• Practical Sailor Value Guide: One-Part Varnishes and Two-Part Systems
• Wood Panels Outlined
• Practical Sailor Value Guide Exterior Wood Finishes (August 2007)
• Practical Sailor Value Guide: Exterior Wood Finishes (October 2007)
• Practical Sailor Value Guide: Exterior Wood Finishes (December 2007)
• Practical Sailor Value Guide: Exterior Wood Finishes (April 2008)
• Download PDF Format

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Yacht varnish

Yacht Varnish protects outdoor wood all year long so it’s perfect for windows and doors. It’s a tough traditional varnish and resists cracking, peeling and blistering.

• Long lasting protection for outdoor wood
• Waterproof and protects from the sun
• Extremely tough – resists cracking, peeling and blistering
• Highlights wood’s natural colour
• Prevents wood from greying over time
• Protects against sun damage
• Won't crack, peel or blister

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Need to know

This no-nonsense varnish is extremely tough and durable, giving you a long-lasting glossy finish.

Eight hours might seem like a long time to wait between coats, but it guarantees you lasting protection and the best finish.

3 coats give you a glossy finish

Varnishes up to 16m2 per litre

Brush it on

Smooth exterior wood like doors and windows

How to use Yacht Varnish

Before you start.

Make sure your wood is dry before you begin. Choose a day that’s reasonably warm (above 10°c) and dry.

This varnish isn’t suitable for decking though.

How to prepare wood for varnishing

• You will need to remove old stain or varnish by sanding it down. Use 120 grit sandpaper and sand away the old finish.
• Wipe down the surface with white spirit and a cloth to remove the leftover dust.

If your wood is brand new, you will need to sand it to remove loose wood and clean with white spirit.

Application

• Thoroughly stir your varnish to make sure it’s smooth and there’s no lumpy bits.
• Test it on a small patch of your door. It’s clear varnish but it may still darken the natural colour of your wood so make sure you’re happy with it.
• If you are, start painting with a brush. Go in the direction of the grain and for best results, apply two or three coats. Wait eight hours between each coat.
• Before you apply your last coat, lightly sand the surface and use white spirit to remove the excess dust. This will give you a nice smooth finish. Your last coat will be dry in four hours.

Once your varnish is dry, you’ll be able to clean your door as normal. Keep on top of the dirt and grime for a friendly welcome to your home.

You can clean your brushes with white spirit or brush cleaner.

It’s easy to repair your varnish if sections of it become damaged. Simply use some sandpaper to sand down and smooth out the damaged part and then add a couple of coats so it’s good as new again.

Technical Specification

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The Best Marine Varnishes

Written by J. Harvey / Fact checked by S. Numbers

Let’s face it, we don’t give as much credit to the almost perfect combination of boats and varnishes. After all, vessels aren’t exactly cheap. They aren’t immune to deterioration as well. If there’s one solid way for you to preserve the life of your investment and even take her beauty up a notch, wouldn’t you seize it?

For my part, I can wholeheartedly say that these varnishes are great investments, especially if we’re talking about the best marine varnish. These concoctions go beyond their practical benefits, lending anything made of wood with a nice finish that only unlocks and magnifies their natural exquisiteness.

I can say as much for the products I’ve featured here. They have given me noteworthy, if not outstanding, results that make the others I’ve tried in my more than ten years of boating and fishing pale in comparison.

• Great finish
• Easy to use
• Great value for money

• Superb satin finish
• High gloss protection
• Very versatile varnish

• Easy to apply
• Excellent UV protection

Table of Contents

1. Rust-Oleum 207008 Marine Spar Varnish

2. totalboat gleam marine spar varnish, 3. epifanes cv.500 clear varnish, 4. mccloskey 7509 man o’war spar marine varnish, 5. totalboat 482869 lust marine varnish, 6. epifanes wfm.500 wood finish matte, 7. minwax 63200444 helmsman spar urethane, 8. interlux iva316/qt cetol natural teak varnish, 9. mccloskey 7505 man o’ war spar varnish, 10. pettit marine paint flagship varnish 2015, 11. system three 1855s16 marine spar varnish, 12. duralux m738-1 spar varnish, 13. old masters 153617 spar marine varnish, factors to consider when choosing marine varnish, what is the best marine varnish, what is the difference between spar varnish and marine barnish, how do you apply marine varnish to wood, how long will marine varnish last, is marine spar varnish waterproof, best marine varnish reviews.

If I’m going for all-around reliability and protection from sun and moisture damage, I’d choose this varnish in a heartbeat.

This is my go-to varnish for anything wood found in my sailboat. Whether it’s furniture or railing or sometimes even the bow, I often get the kind of maintainability I want every time I use this. The finish is no less attractive and only gets glittery over time in a number of my past applications.

Thinned up to around 30%, it dries quickly enough to apply multiple coats in a day. Sometimes I go for as low as 20%, down to even 5%. It’s because thinning too much does tend to backfire and lead to the varnish taking a long time to dry. It’s easy to use with everything considered.

If you want the best results, I’ve found that using a fresh foam brush with every coat would result in optimal smoothness. It may seem like a waste, buying multiple brushes, but the results are unrivaled, to say the least. I’ve had applications that lasted for a good 3 years before I needed to refinish them.

• Excellent UV and water protection
• More affordable but with high-end results
• Low shelf life

This varnish smoothly combines ease of use, beautiful finishes, and above-average durability. The winning formula for successful marine finishes for wood, in short.

This varnish is versatile in that it leaves plenty of routes open for you to take. For one, I like that they give you plenty of freedom when choosing the shine you want. It’s also available in different sizes, so I always get to buy only the proportions I deem fit for a specific project.

I have to be partial to the satin finish, though, since it delivers the exquisite luster I like to see in my indoor boat furniture and fixtures like railings. However, I always make sure to apply a high-gloss varnish if I’m working on anything that has to be exposed to the sun for long hours. That being said, I like that this product gives you both satin and gloss options.

I make sure to apply the high-gloss varnish as a topcoat, and I’ve gotten excellent results, mostly 1 to 2 years of unblemished finishes, with this practice. Sometimes, it’s shorter than that, especially on wooden areas that are more exposed to the elements. Yet, it’s protection you normally expect and can get from high-gloss varnish. In addition, it’s a varnish that’s also noticeably on the thin side, so I kind of get that it wears away faster than thicker varieties.

• Uncomplicated to apply
• Has multiple sheen and size options
• Not as durable as others

Another safe option, Epifanes marine spar varnish is anything but average with its status as a crowd favorite. Expect superior finish and durability if you choose this.

This varnish easily earns a spot here, considering its unchanging and undeniably positive reputation among boaters. Simply put, it’s hard to fault because of the wonderful results it can bring. The shiny, attractive gloss that has the Epifanes trademark is rarely surpassed by other marine-grade varnishes in my opinion.

What’s equally neat is that it’s not difficult to apply. You don’t really need to sand it with every coat, unlike the majority of other brands out there, but I still suggest you do it, especially in the later coatings. I recommend using marine spirits as a thinner with a 2:1 ratio, and take the time to pour it through a strainer to guarantee a smooth finish. At best, you’ll have to set 5 to 7 days of gradual coating to get the kind of attractive finish you want; and I mean capital-A attractive.

As in other great exterior varnishes, this product is an example to follow when imparting UV protection. At least, that’s what I think is primarily responsible for the excellent finish and the overall durability. I use this as much on my sailboat’s wood portions above the waterline and furniture as well as furnishings in my home, and the finish often lasts for 2 years on average.

• Amazing shine and finish
• Takes a while to dry
• Short shelf life

McCloskey’s Man O’War spar varnish is durable, to an almost no-brainer degree. It’s what I buy if I want to get the best out of what spar varnish offers to the average boater.

Despite its relatively hard finish, spar varnish tends to wear out faster than urethane. It’s a natural thing, so I won’t bother to list it as a con. You can’t mimic the deep amber tint, caramelization, and versatility of good old spar varnish, and this brand delivers no less than that trio of perks.

If I’m going to name a worthy brand representative of spar varnishes, I’d promptly pick this one. It adheres excellently to any kind of wood, so I generously slather any wooden fixture in my boat with this once I get a hold of a bottle.

While it’s easy to use, you’d better be prepared to invest time working with this varnish. I use mineral spirits for thinning, and I make sure to apply thin coats, starting from the middle, using a mini roller and a brush, mohair and ox hair respectively. I sand in between coats, and overall it takes time since it dries slowly.

The durability stems a lot from the outstanding UV protection. My sailboat’s wooden bow that has this finish has been battered by rain a good number of times already, and it’s still holding up after a year since the initial application. Since it’s effortless to apply, I just sand and recoat every once in a while.

• Outstanding UV protection
• Adheres to most types of wood
• Classic, eye-catching spar varnish finish
• Slow-drying
• Limited availability

TotalBoat is a household name in the marine industry as far as paints and varnishes go. This is the brand’s best offering if we’re going to consider fundamental factors like durability, shine, and value for money.

I need to stress outright that this varnish is extra thick, almost honey-like. If you don’t thin it out to at least 50%, you’ll only end up grappling with it to less than desirable results. It’s not exactly beginner-friendly with that considered, but it does pay off since you get optimal protection and the kind of shine any boat owner would be proud of.

Speaking of the finish, it begins to shine through once you hit the one-year mark. At least, that’s what I get from most of the vessels and furniture I apply it to. I can say that it’s smooth sailing once you take the time to know the right consistency.

I often use a roller and apply 5 coats then do a recoat after 2 hours in a whole day. Ideally, the last two coats should only be thinned by about 10% only. It might get tricky applying it then but, trust me, you’ll get the hang of it.

I get the results I want within a day or two — or more at times during less than optimal humidities and temperatures. Even so, that’s obviously quicker than handling traditional varnish, which takes weeks to settle. I do acknowledge the thinner’s role in helping with the drying time.

• Excellent shine and finish
• Proven durability
• Becomes easy to use with practice
• Quick-drying

If we’re talking about top-of-the-line, marine-grade durability, this one deserves to be called the best marine wood finish.

This is my favorite to use on teak because of its proven waterproof capabilities and the fact that its satin finish has just the right amount of sheen, for me, at least. It brings out the beauty of the teak and almost any wood I apply it to, for that matter, and this is coming from someone who has tried numerous marine-grade varnish before. I’ve had furniture that managed to maintain its finish for an impressive 5 years with the help of this varnish.

It’s a bit of a challenge to apply. It actually flows well enough as it is, and I rarely have to thin it with every application. However, you have to make sure that you apply it evenly with every coat and oftentimes as quickly as possible. Once I get patchy and bubbly results, that’s the only time I thin it, and I sand after the first coat, totaling up to 3 coats on average. It will dry more slowly if I thin it, though.

• Excellent durability
• Nice satin finish
• Flows smoothly without thinning
• Brings out the beauty of the wood extremely well
• Fairly cost-effective
• Not beginner-friendly

Though not marine-grade, Minwax has proven to be just as durable as many products with that label. It’s very easy to use and delivers just the right amount of shine.

I often use this on my sailboat’s furniture, and if left with no other options, even the wooden exterior of the hull and bow. It goes well with canoes, but I only tend to apply it on the ribs, rudder, and planking. While not marine-grade, it’s great for outdoor furniture, and, to me, that’s always a good sign of heavy-duty UV protection.

If I want to reinforce the protection, I only need to apply more layers, 4 coats at most but not less than 2. I’ve only used it on oak-made fixtures, though, and I get the longevity and finish I want with that kind of simple setup. The varnish lasts up to 1 to 2 years before recoating becomes necessary, with minor peeling only appearing after a year based on my experience.

I like that they give you plenty of options with regards to sheen and container sizes. I prefer satin for my interior furniture. I once made the mistake of not mixing it well and got a result that’s almost similar to high gloss. To avoid this, you need to make sure you mix it for a good 5 minutes and scrape the sides and bottoms of the can as you do so. This guarantees the soft shine you’re aiming for.

• Plenty of sheen and size options
• Decent durability
• Dries quickly
• Not exactly marine-grade

This varnish earns my thumbs up with the kind of inimitable finish it can deliver and its relatively easy application.

This has since become my favorite varnish on teak fixtures when I tried it out 2 years ago. This is because of the immense difference it makes in the way it lends my pulpit or anything made of teak with a sophisticated, good-as-new finish. It’s not overly glossy, which I attribute to the “natural teak” claim, and only darkens the wood a tad so it will still maintain its natural hues.

I’m glad it didn’t cause any yellowing, and after my second application, I can still say the same. It has a runny consistency that merits forgoing thinning on the first coat. I like to use a brush when applying it to have better control over coverage, which is great enough as it is, and all I can say is that I’ll apply this to my boat’s bow and rails the moment they start showing signs of wear.

Nonetheless, it would be pushing it to say that it’s as durable as the other varnishes here. It only took a year before my bow showed signs of peels and cracks. However, after I applied a single maintenance coat on the entire thing, I found that it limited or delayed the damage since I’ve yet to see signs again after doing a recoating. That being said, I suggest applying a fresh layer at least once a year to make the most out of this marine varnish for boats.

• Outstanding finish
• No sanding and thinning required in most cases
• Good coverage
• Minimal darkening
• Well worth the money
• A bit pricey
• Not durable

Budget-friendly, reliable, and just as good as other solid brands, this McCluskey varnish is a must for anyone choosing to go for value for money all the way.

The fact that this varnish can give you outstanding satin finishes and superb durability without going overboard in cost should give you a ready hint why a lot of boaters are shifting to this product. When I say superb durability, I mean thick coatings that you’ll be confident will last for years.

In my case, the minimum is 3 years on all my wood projects, boat bows, railings, and furniture included. You may start seeing peels and scratches here and there, as evidenced by the 7-year-old canoe that I refurbished 3 years ago. But, to me, it’s still none the worse for wear and nothing a minor recoating job won’t remedy.

The finish is not unlike the ones I get from the other varnishes mentioned here. It accentuates the natural color and look of the wood, and I’m saying this for redwood, teak, and light oak, which are the types I’ve applied it to. It dries in a day like most spar varnishes and typically doesn’t need to be thinned, though sanding is ideal per coat.

Incidentally, I need to underline the fact that this varnish is one of the few that doesn’t skin over in the can after you’ve stored what’s left of it. At least, that’s what I can say for most of the cans I’ve purchased and stored, with about a third of the can full in a year.

• Works well for most types of wood
• Superior durability
• Doesn’t skin like other varnishes
• More reasonably priced than other brands

This rarely figures in marine varnish review posts, and that’s unfortunate considering it’s another top-quality marine varnish that doesn’t yellow, imparts a glossy and thick appearance, and superb UV protection.

Usually, I use this as a general-purpose varnish for the teak and cedar parts and fixtures of my one and only yacht. It gives a deep-colored, thick, glossy, grainy, and smooth finish that I can’t get enough of. It doesn’t yellow at all, probably because of the UV additive used, at least, partly. Anyway, this is one positive quality I always like from any alkyd varnish that is done right.

I prefer to spray this one, following the 20% thinning guideline. Spraying shortens the time for full coverage. I sand lightly between coats using 220-grit sandpaper, and by and large, I only need 3 to 4 coats to get the beautiful finish I described above. It takes almost a whole day to dry, but I don’t mind since I get quality results.

As for durability, I can safely say it’s UV stable. I often leave a couple of chairs and tables out on the deck if the weather’s great, oftentimes, for an entire day. Besides a few scratches in some parts, which aren’t UV-related, they haven’t peeled yet and have maintained their shininess after 2 years since application. I can say the same for the yacht’s teak pulpit.

• Doesn’t yellow
• Superb UV protection
• Proven gloss retention

To me, this is the best boat varnish if we’re only considering durability. It also earns a ready checkmark in protection and attractive finish, making it nothing short of tough to beat.

As far as durability is concerned, the longest that I’ve seen this last without undergoing any kind of major peeling or cracking is close to 3 and a half years. It was on my favorite canoe, which I use fairly regularly for freshwater fishing. 3 years is the maximum for any exterior wood varnish for me, and without a doubt, many boaters would say the same.

I attribute most of the longevity to the excellent water and UV protection. My canoe has borne the brunt of rain and water splashes over the years. I can say the same when I expose it to extensive sunlight exposure when I go fishing in Lake Erie. Top-tier durability in my book.

I sometimes use a thinner with this varnish, but I’ve found that you don’t really need to thin it if you use an HVLP spray gun. Sure, it takes a while to dry and you have to be extra careful, but I’ll take that any day if I get to enjoy these perks and results consistently.

• Outstanding durability
• Relatively attractive finish
• Easy to apply with a sprayer
• Comes in gloss and satin varieties
• Dries slowly without a thinner

A true gem of a find, Duralux exceeded my expectations with its durability and versatility.

In almost any kind of marine varnish for exterior doors, durability and protection immediately go well together. This spar varnish proves it doesn’t belong on the back burner by delivering both. One of my canoes that I applied this on is still going strong for more than a year, and that’s a quality not a lot of products can boast of.

I’ve had varnish that didn’t take more than a month to start peeling and cracking. That’s after a fresh application, mind you, and, yes, I follow brand recommendations to a tee if I haven’t discovered a better way to apply it. This varnish has kept my other canoes shiny every time so I deemed it deserves the spotlight.

Moreover, it doesn’t yellow over time, unlike some clear varnish I’ve used before. You may argue that there’s a lot of variables when it comes to varnish yellowing, like sanding and possible chemicals it can react to. I’m not sure whether this is spar polyurethane, but I’m betting it is since that’s the only type of varnish I’ve used that doesn’t give me the yellowing effect even with minimal to no sanding.

• Satisfactory finish
• Uncomplicated application
• Doesn’t yellow over time
• Doesn’t dry quickly

Old Masters’s varnish shouldn’t be overlooked for its conveniences and quality that only a few top-tier varnish brands can bravely claim they can deliver every time.

This is among the lesser-known spar varnishes that don’t yellow even after a long time has passed. The canoe that I refurbished 3 years ago would prove as much, as it’s still holding up well, surprisingly if I might add. To be honest, this was a second option when I bought it as I didn’t have TotalBoat and McCluskey varnishes available back when I did the finishing job.

I was pleasantly surprised by how things turned out. I followed the instructions and stirred it well. It’s just the right kind of thick, to the point that I don’t have to thin it when applying with a brush or roller. I do have to thoroughly sand and clean the surface first, and it evens out nicely with every coating.

It dries quickly enough for me to apply a second coat in a single day, making me think it’s an exception among oil-based spar varnishes. At best, I give an allowance of 8 to 10 hours before brushing the next coat. Obviously, that’s a time-saving perk I’ll take any day.

It doesn’t produce a yellowing effect, even when applied to parts of my canoe that are regularly exposed to heat, sunlight, and the elements. That’s noteworthy considering it’s a clear varnish. I even have to say that the slightly weathered look it has gotten lends it a charm that most boaters would appreciate.

• Easy application
• Decent durability and finish
• Doesn’t yellow with age
• Limited to small pint-sized cans

Based on my experience, there are many “safe” marine varnish options out there. This only means you’re likely to not run out of beginner-friendly brands and can guarantee high-quality results at the same time. Whether it’s high-gloss or satin, all spar varnishes are easy to apply over new wood or previously coated surfaces. Marine varnish is also not partial to any type of wood and can accommodate those commonly found aboard or form part of a vessel, like teak, redwood, oak, etc.

However, that doesn’t completely discount the need to pay attention to certain factors when making your decision. These are usually the ones I make a note of when planning to start a varnishing job.

• Durability – I’ve found that marine-grade polyurethane is hard to equal when it comes to finishes that are guaranteed to last. Most spar varnishes pale in comparison to their urethane counterparts in this regard because polyurethane tends to last for a minimum of 3 years before re-coats are needed, based on my experience. This is why they’re great options as a marine varnish for outdoor furniture.

For spar varnishes, I’ve had finishes that only lasted a year or even less. At best, these two offer equally potent UV protection, waterproof benefits, and even resistance to scratching.

• Drying Time – Are you working with a severely limited timeframe and need to complete coats within a day? You may want to consider varnishes that dry faster like water-based spar urethane since these can dry in only a few hours. Most spar varnishes require a whole day of waiting to apply coats, assuming climate conditions are optimal.
• Ease of Use – To ensure you won’t end up throwing away your money, don’t ignore how easy or hard a specific varnish is typically applied.
• Shelf Life – It won’t hurt to pay attention to how long a specific can of varnish will last while in storage.
• Gloss – This is admittedly a largely subjective factor, but if you’re opting for high-gloss varnish, it’s almost always the one with the best durability. However, do you like your wood to be extra shiny? There are semi-gloss and satin finishes that are just as attractive, if not more, especially when used on anything wood that is below deck.

We also need to discuss the possibility of a varnish yellowing or darkening the wood that it is applied to. Sometimes, the darkening could be due to the UV additive or tint used; thus, making it unavoidable unless you opt for a different varnish brand altogether.

As for yellowing, there are ways to avoid it. I shall discuss it below, but sometimes, it’s due to the actual product as well, especially if they are clear, alkyd, or oil-based. It’s not an absolute thing, though, and there are products that prove to be exceptions to this rule.

You’ll hear a lot of experienced boaters recommending brands like Epifanes, TotalBoat, McCloskey, and Rust-Oleum. I agree with them because, to me, these brands can easily meet the standards of high-quality marine varnish. Each one has qualities where they serve to shine better, and the reviews I outlined above should give you a good idea about what they are.

Nonetheless, I’m not completely discounting the other brands I included here. I daresay that they’re just as good as those top-dog brands, especially in essential factors like durability and a long-lasting aesthetically appealing finish. Moreover, I find them to be valuable substitutes if any go-to brand happens to be unavailable and won’t even hesitate to pick them as the main option based on certain requirements of a finishing job.

Incidentally, you may have noticed that I didn’t include ease of cleaning when discussing these brands. That’s because most, if not all, of them are very easy to clean for me. At least, for the almost uniform smooth finishes that I get out of them.

There’s not much, really. When boaters use the term “spar varnish”, chances are, they’re also automatically referring to marine varnish. You can also see this in how brands usually label their products in online stores, like Sherwin Williams marine spar varnish or TotalBoat gleam marine spar varnish, to cite a few examples. If you’re using spar varnish, it’s almost always marine-grade.

Both terms give the ready connotation of finishes that provide heavy-duty protection against the harsh elements usually involved when boating, fishing, and cruising. You’ll find plenty of oil-based spar varnishes (i.e. tung oil, alkyd resin, etc.) that are imbued with additives that serve to accentuate the natural beauty of the wood, as well as solvents and other chemicals that promote fast drying and add UV protection.

Since certain varnishes have different components or are more natural or synthetic, it’s best to stick to the manufacturer’s instructions when applying any kind of varnish. However, we can’t deny that most projects share a few essential guidelines, such as the following:

• Preparation usually entails sanding between coats. The most ideal to use for this purpose is 180 to 220-grit sandpaper or even a Scotchbrite pad will do sometimes. Take note that some varnish products can do without sanding, especially for the initial coat. But, this would still depend on whether you’re applying it to a bare wooden surface or if it’s been previously coated before. If it’s the latter, then you’d most likely need to sand it first.
• Clean the dust that forms after sanding using a clean rag. I wipe it down further with a tack rag to ensure no dust or debris would still be present the moment I start applying coats.
• As for temperature and humidity, it’s best to apply any kind of marine varnish if the temperatures during the entire day don’t go above 80 degrees Fahrenheit. Humidity should be 50 to 60% or even slightly lower than that. I found that the smartest route to take is to be patient and wait for the right climate before going ahead with a project, especially if you know that it will take a number of days to finish.
• Thinning depends a lot on the product. If it’s too thick, it’s often necessary to do this, even if the brand doesn’t mention it in the instructions. The safest route for this is to follow a 2:1 varnish to thinner ratio. Mineral spirits are recommended.
• I also recommend taking the time to strain the varnish using a paint strainer to ensure a smooth finish. Sometimes, this can make all the difference in the world in getting the kind of finish that any boater would be proud of.
• As for applying coats, there are certain products that require you to start from the middle so that you can ensure an even coating. Others would caution about wiping too much, while many suggest, as is often the case in spar oil-based urethane, to make thin coats for every layer.
• Bristle brushes and badger-hair brushes are often the standard tool for application. But, again, there are products that are easier to apply with a spray or roller.

Most marine varnishes typically last for at least 2 years. There are brands that have a minimum of 3 years before they begin showing signs of damage. I can attest to marine varnish that keeps its shine and protection for 5 years, and I’ve highlighted the exact products that can achieve that.

Ultimately, if you keep its sun exposure to a minimum, you’re guaranteed to extend any kind of varnish’s lifespan. I’ve noticed that varnished fixtures and furniture in my yacht tend to last significantly longer than the ones that are exposed to sunlight extensively, regardless of the varnish’s UV-protective capabilities.

This is almost always the case considering this type of varnish is marine-grade. Most experts attribute this to spar varnish’s flexibility (i.e. its ability to expand and contract with the wood). However, equally many attribute it to the simple fact that spar varnish is mainly oil-based, allowing to wick away moisture with ease.

Now, do you have a good idea of what the best marine varnish brings to the table? With all things considered, the best parting advice I can give is to not hesitate to try out the options available to you. Sure, there will always be no-brainer choices, but it didn’t take long for me to find out that it pays to try out other brands because they may give your boat the kind of shine or longevity you’ve always wanted.

“I am James Harvey – founder of Boating Basics Online. It is established with the drive to help out first-time boaters, which are those desiring to explore their way through the water. So if you are new to boating, start from here with me. “

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Top 7 Best Marine Varnish for Wood (Reviews & Buying Guide 2022)

Varnishing wood is the commonest way of revitalizing old wood. Many people varnish their cabinets and countertops to offer additional protection and add a glossy finish to them. A nicely varnished wood or piece of furniture is attractive and a beautiful sight to behold.

But, choosing the best marine varnish for wood is one hell of a tough task. Many people get confused as to which product is the varnish or not. I’ll be reviewing the best marine varnish for wood and what you need to know before selecting the right product and how to apply the varnish perfectly. First, what’s a marine varnish?

All at a Glance

Choose from our top 3 Picks

Last update on 2024-08-22 / Affiliate links / Images from Amazon Product Advertising API

What Is Marine Varnish?

The marine varnish is a formula that acts as a protective film against wear and chipping. It’s specifically designed for wood exposed to water. Before now, varnishes comprised resin and pine sap. Now, varnishes feature simpler chemical ingredients like Tung oil, phenolic, and alkyd resin, making painting much easier.

One significant thing that differentiates the varnish from paints is the color. Unlike paints, the varnish isn’t colored. Plus, you can’t use paints for marine wood because the water will wash it away.

Marine varnishes provide sturdier finishes and can withstand water and bad weather conditions excellently. It has good coverage and offers more protection to the wood, prolonging its lifespan.

Reviews of the Best Marine Varnish for Wood

1. totalboat lust matte finish marine varnish – best overall marine varnish.

TotalBoat Lust Matte Finish Marine Varnish is an incredible marine varnish that will keep your piece of furniture and boats glowing and beautiful. This high-grade varnish is super durable and ideal for coating interior and exterior wood projects.

The premium finish is resistant to scratches, and won’t peel or wear away. The finish remains the same, whether the wood contracts or not. The temperature changes won’t affect the appearance or the lifespan of the varnish.

This marine varnish delivers a rich, and amber finish on your wooden pieces, and enhances their appearance. The finish is UV resistant, which is why you can use it on exterior projects. Thanks to its waterproof feature, water splashes have no effect on the finish.

One of the best features of this marine varnish is its drying time. The finish dries super-fast and permits rapid coating. You can apply this finish multiple times without sanding in between until the final finish.

• MARINE GRADE VARNISH imparts a rich, clear amber tone that enhances wood grain; creates a durable, uv resistant, waterproof finish that won't fade; ideal for interior and exterior wood, brightwork on boats & outdoor furniture
• CLASSIC SPAR VARNISH WITH A MODERN TWIST: High-build, fast-drying formula allows rapid recoating, multiple coats per day and no sanding between coats; sand lightly before the final coat - be done in a little over 1 day
• FLEXIBLE COATING WON'T CRACK OR PEEL: Premium, oil-based marine polyurethane finish is not damaged when wood expands and contracts with changes in temperature; perfect for all types of wood
• EASY TO APPLY by brushing, rolling or spraying; For a high gloss varnish finish apply 6-8 coats of Lust Gloss; for a smooth satin finish, build with coats of Lust gloss varnish; use Lust Matte for the finish coats
• AVAILABLE IN HIGH GLOSS OR MATTE FINISH in Pint, Quart and Gallon sizes; Thinner: TotalBoat Special Brushing Thinner 100 (brushing/rolling) or TotalBoat Spray Thinner 101 (spraying); Coverage: 360-400 sq. ft./gallon

In addition to its fast-drying formula, the varnish is easy to use and relatively thick. Using a brush or roller, this varnish cures into a lustrous and yellow finish that you would adore.

• It’s durable
• UV protected
• Super easy to apply
• Great for indoor and outdoor use
• Weather-resistant
• Includes a fast-drying formula
• Cures into a beautiful finish
• The amber coloring doesn’t sit well with many people.

Aside from its amber coloring, TotalBoat Lust Matte Finish Marine Varnish is arguably the best marine varnish available. It’s thick, straightforward to use, and suits various indoor and outdoor projects.

2. Rust-Oleum 207008 Marine Varnish – Best Durable Marine Varnish

Rust-Oleum Marine Varnish will add natural beauty to the wood and deliver a crystal-clear finish. Although it’s an oil-based formula, the amber color will darken over time, leaving you with a more superior finish.

This spar varnish works well even in the harshest weather conditions, thanks to its UV and weather-resistant features. The formula is formulated to provide the wood with optimal protection against chemicals, sunlight, and water splashes. Due to how flexible the varnish is, it can expand and contract as the weather changes, maintaining its clear and superior finish.

The varnish is also durable. It’s tough and resistant to scratches, mildew, and stains. This makes it a perfect option for coating boats and outdoor wood pieces of furniture that are constantly exposed to water.

The oil-based formula is easy to use if you follow the manufacturer’s instructions. You don’t need to thin the formula before applying it because its liquid nature. For best results, apply with a China bristle brush and a fresh foam paintbrush.

• Ideal for use on exterior wood surfaces above the water line, including trim, railings and wood furniture
• Oil-based formula expands and contracts with changing weather conditions
• Dries to the touch in 2 hours and covers up to 150 sq. ft.
• Durable coating provides excellent resistance to UV, salt and mildew
• Crystal-clear varnish leaves a beautiful gloss finish with maximum protection

Last update on 2024-08-12 / Affiliate links / Images from Amazon Product Advertising API

Rust-Oleum dries rapidly and has a wide coverage when applied. After coating, the varnish dries under two hours into a beautiful and glossy finish.

• Produces a clear and great finish
• Easy to use
• Requires no thinning
• Dried quickly
• Excellent for exterior use
• Resistant to temperature and sunlight
• Good value for money
• Not suitable for indoor use.

This varnish is an incredible formula that will protect your wood adequately from water and other weather elements. Its durability is topnotch and the price is also affordable.

3. Epifanes Clear Varnish – Best UV-Resistant Marine Varnish

When it comes to making a durable and clear marine varnish, the Epifanes is one brand you can rely on. And this Clear Varnish is no different from other lines of products the brand produced.

What makes this product stand out from others is the extra UV filters that it comes with. The filters offer additional protection to the wood compared to other varnishes. With this, you can coat your boats and wood furniture in the sun for long hours without problems.

Unlike some marine varnishes, this product doesn’t change the appearance of your projects. Rather, it enhances the surface’s appearance by creating a beautiful brown/amber finish. This color effect is super glossy and quite clear.

• World famous, highest quality tradional tung oil marine spar varnish.
• Formulated with tung oil, phenolic and alkyd resins resulting in a finish that has superior flow, gloss, durability, and exceptional longevity.
• UV filters for superior protection with an ultra high gloss finish
• Used in many applications, both exterior and interior, household or marine, brushed, sprayed, or rolled and tipped.
• Use on new wood or restoring old wood to a deep clear finish, softwood or hardwood, marine or household applications.

Apart from creating a superior amber and glossy finish, this product is also durable and has a wide range of applications. You can use the varnish on household furniture and for outdoor projects. The varnish accepts various methods of application, such as brushing, rolling, and spraying.

• Leaves a clear, amber, and glossy finish
• Contains extra UV filters for added protection
• Suits different methods of application
• Great for interior and exterior use.
• Sanding between coats is required.
• Creates bubbles if not applied properly.

Epifanes Clear Varnish is the right product for you if looking for a product for both interior and outdoor use. It’s easy to use, as you can use any method of application.

4. TotalBoat Lust High Gloss Marine Varnish

This is another high-quality marine varnish from TotalBoat that will create a deep, rich, amber finish when applied to your wood project.

This marine-grade product enhances the overall look of the grain. It adds a natural beauty that you would love. The varnish is highly durable and comes with sun absorbers to prevent the sun rays from damaging the coats.

Thanks to the varnish’s durability, the coats would neither fade, peel or crack due to temperature changes. The varnish contracts and expands, maintaining the finish and appearance of the wood.

This varnish also creates a waterproof finish. It contains certain ingredients that make it highly resistant to water. This makes it ideal for coating furniture, boats, and all marine applications.

TotalBoat Lust High Gloss Marine Varnish also has a fast-drying formula. Once applied, the first coat dries within an hour. The varnish also allows for multiple coating, and the best thing about it is that you don’t need to sand until the final coat. You can coat your boat and other pieces of furniture in a day, which is great.

In addition to its fast-drying formula, this product cures into a hard, smooth, superior, and glossy finish. The finish is super-clear, even though it’s an amber finish.

• Creates a superior and beautiful finish
• Easy to apply
• Extremely durable
• Offers optimal protection against water and weather elements
• Resistant to fade and scratches
• Requires a few sanding in between coats
• It’s too thick.

This varnish produces a great finish. It holds up well and requires less sanding in between coats, unlike some conventional varnishes. Although you may need to thin the product as it’s too thick.

5. Epifanes Wood Finish Matte

One thing I love about this varnish is its satin sheen finish. It leaves your boat and other wood furniture with an adorable effect when used.

Thanks to its components such as phenolic-modified alkyd resin and tung oil, this varnish dries into an amber, clear, and elegant finish. Best of all, you don’t need to recoat the wood surface after using this product for a long time. The finish is long-lasting, which is impressive.

Epifanes Wood Finish Matte is super durable, as it offers maximum protection against fade, wears, and scratches. It also comes with UV absorbers that protect the wood from the effects of the sun. This means you can coat your piece of furniture or boat in the sun without side effects.

This finish is easy to apply, and you don’t need to sand in between coats due to its low porosity level. Because of this, the varnish brings out the best finish in the wood while concealing its awkward appearance.

• High build, hard matte finish without sanding between coats. (if recoated within 72 hours)
• Soft matte beauty with outstanding U.V. protection for teak and other fine hardwoods.
• One component varnish based on phenolic-modified alkyd resin and tung oil.
• Microscopic porosity properties allows no sanding between coats for up to 72 hours.
• Matte Finish giving a rubbed effect look.

This product is thick, so you’ll need to thin it with mineral spirit before application. For the best finish, apply with a brush.

• Great for outdoor use
• Sanding between coats is unnecessary.
• Creates a satin and smooth finish
• Highly durable
• Contains UV absorbers
• You will need to be fast with the application, as it dries quickly.

For those who prefer a matte, satin finish, I recommend the Epifanes Clear Varnish. It’s UV protected, resistant to fade, and dries quickly into an adorable finish.

Read Also: Best Water Based Polyurethane for Furniture (Reviews & Buying Guide 2021)

6. McCloskey 6539 Man O’ War Marine Spar Varnish Gloss – Best for Interior and Exterior Use

If you want a durable product that you can use for both interior and exterior wood projects, then the McCloskey Marine Spar Varnish is for you.

This marine spar varnish is extremely durable. When dried, scratches and others have minimal effect on it. Best of all, this marine varnish is UV and moisture-resistant. This marine varnish is suitable for boats, furniture, and other areas that are frequently exposed to water, as it will offer increased protection against ocean salt and peeling.

Bothered about temperature changes? With this marine spar varnish, you don’t need to. It expands and contracts according to temperature changes. This means the beautiful finish on the wood remains the same and unaffected.

• Resistant to water and UV
• For wooden boats, furniture and fences
• For bare, stained previously varnished surfaces
• For high moisture areas such as bathrooms and kitchens
• Clean up with mineral spirits

This product holds up well and quite convenient to use. You don’t need to apply many coats to get your desired finish. The product dries into a hard, long-lasting finish. However, it doesn’t dry as fast as one would expect.

• Holds up well
• Works well in any weather condition
• Resistant to sunlight
• Long-lasting finish
• Delivers a superior finish
• Straightforward to use
• Gives off an odd smell during use.

This is one of the best marine varnishes on the market that doesn’t cost much. Though it’s designed for marine applications, it’s great for coating indoor wood pieces of furniture. It’s not difficult to apply, as you don’t need to thin it.

7. System Three 1855S16 Clear Marine Spar Urethane Varnish Coating – Best Budget Marine Varnish

If you are looking for the best low-budget marine varnish, I recommend the System Three 1855S16 Clear Marine Spar Urethane Varnish. This varnish is fantastic, and one of the best there is. It cures properly into a satin and gloss finish.

This marine varnish is made for exterior use and offers optimal protection to the wood. The finish is durable, making the wood surface tough and resistant to scratches and weather elements.

Additionally, the marine varnish contains ultraviolet absorbers that prevent the sun rays from getting into the wood. This keeps the wood furniture or surface glowing even when exposed to sunlight. It’s also resistant to water, being that it’s a marine varnish.

For easy application, the System Three Clear Marine Varnish excels greatly. With a roller, brush, or HVLP sprayer, you can easily apply the varnish on doors, railings, etc. You don’t have to thin the varnish before using it unless for special coatings, which is fantastic.

In terms of drying, the finish doesn’t perform badly. It dries relatively fast, and the final finish appears smooth and super glossy. When thinned, a self-leveling finish is created, eliminating the chances of bubbles forming during application.

• Premium Varnish: Our marine varnish is a high-build coating designed for use as a marine epoxy and exterior wood varnish on surfaces like railings, doors or any surface where a clear, durable gloss finish is desired
• Features: Formulated to provide exceptional exterior durability for the most demanding environments, this spar varnish contains state-of-the-art UV absorbers designed to keep wood looking beautiful even with constant exposure to strong sunlight
• Versatile Application: Use a high-quality, natural bristle varnish brush to apply the varnish to boats, outdoor furniture or doors
• Tips and Tricks: Our spar urethane varnish is resistant to scratching and marring; You can spray varnish after taking proper precautions and by applying proper techniques
• For Best Results: Weather conditions or sudden drops in temperature will affect any varnish; Do not apply before morning dew has dried, and stop well before dusk

I love the fact that the varnish is affordable. For buyers who are unwilling to spend much on a varnish, this product would be a perfect choice.

• Creates a fabulous finish
• Water-resistant
• Cures into a durable finish
• Resistant to scratches
• It doesn’t dry fast.
• Not great for interior use

System Three Marine Varnish is a low-budget, high-quality finish that will revitalize your old outdoor wood piece of furniture and make them look beautiful again. Its UV absorbers will prolong the wood’s lifespan by preventing the sun from penetrating the wood.

Best Marine Varnish for Wood Buyer’s Guide

When in the market for the best marine varnish for wood, there are essential factors that you must consider to ensure that you make no mistake. Below are some of these factors;

Types of a Marine Varnish

You will encounter several types of marine varnishes when in the market for one. Marine varnishes exist in the following types as Tung Oil mixture, Water-based and Oil-based Polyurethane, Exterior Varnish, Spar Varnish, Two-Part Varnish, and Acrylic Varnish.

As I earlier explained in this article, classic varnish comprised of resin and pine sap. Modern marine varnishes now comprise tung oil, phenolic resins, and alkyds.

Varnishes with tung oil offer gloss finishes and harden after application. This makes them great for coating boats and other things that come in contact with water.

Water-Based and Oil-Based Polyurethane is another type of varnish. They contain chemical components that harden quickly when applied to a surface. Unlike oil-based poly, water-based results in crystal clear finishes and doesn’t give off yellow color. However, it is not durable as oil-based poly.

Exterior Varnish is for exterior use. It comes with UV protection that makes the varnish suitable for outside utilization. This varnish makes it impossible for mold to grow in the wood because of its deep penetration.

Spar varnish is mostly used for coating boats since they come in contact with water constantly.

The two-part varnish is a finish that comes with a base and a hardener. These two components are mixed in the right combination to give the best coating result. Two-part finishes offer maximum abrasion resistance and dry super quickly.

Acrylic varnish dries quickly and non-toxic. Like Exterior Varnish, acrylic varnish comes with UV light protection, so you can use it both on the inside and outside.

The acrylic varnish is also clear after application. However, it has low penetrating power but it’s not corrosive or gives off a bad odor. This makes it safe for use.

Ease of Cleaning

You can’t be too careful with using varnishes, as they sometimes spill accidentally. That’s why you need a formula that’s easy to clean. You will find it more comfortable to clean such a formula when it spills during use.

The varnish should be utterly resistant to abrasion and scratches and last for an extended time. This will minimize expenses and save you money a great deal.

Ease of Use

Some varnishes are difficult to use, especially for those who are just starting. As a beginner, you should use a product that’s easy to apply. You should use a product that you can handle comfortably should mistakes occur during painting.

Drying and Curing Time

Every varnish has its drying and curing time. However, you should avoid those that take time to dry, as they can complicate your schedule. Plus, varnishes that take time to dry are susceptible to dust and debris accumulation, affecting the coating result.

Safety and Maintenance Tips When Using a Marine Varnish

Maintaining a marine varnish will make it last longer and maximize its effect. Therefore, you need to take care of it and ensure that it’s kept in a safe place.

Careless handling of a marine varnish can jeopardize your safety. Marine varnishes are flammable. Exposure to fire and direct heat will cause an explosion.

Before you can begin to apply a marine varnish, make sure the area is properly ventilated. Painting outdoors, especially in the morning is most preferred. Also, you must wear safety gear like gloves, goggles, and a respirator for optimal security.

Although some marine varnishes come with UV protection, direct sunlight can affect the drying process. So you should either paint in the morning or late in the afternoon to avoid fast drying.

How to Apply a Varnish

• Clean the surface and prepare the surface for the first coat.
• Rough the surface up with 80-grit sandpaper so that the coat can stick.
• Thin the first coat with white spirit for oily varnishes and water for water-based varnishes.
• Apply the first coat with a roller. You can also use a paintbrush.
• Make sure the coat is dried properly.
• If you can see some bubbles on the surface, sand it with 180-grit sandpaper or any other fine-grit sandpaper to smoothen.
• Apply the second coat. This time, don’t dilute it.
• Wait for it to dry.
• If you wish to apply the third coat, repeat the process from step 7

What is the difference between spar varnish and marine varnish?

Spar varnish, also known as spar urethane, and marine varnishes are nearly similar. Both protect the wood from water and moisture damage. The major difference between spar varnish and marine varnish is that spar varnish can be oil-based or water-based, while the marine varnish is mainly water-based.

Is marine varnish better than polyurethane?

It depends on the surface you intend to apply the finish. For doors and exterior surfaces, the marine varnish is best to use because of the chemical properties and moisture-resistant abilities. Polyurethane is best used for items inside the home or interior use.

What makes varnishes better for exterior use than polyurethane is due to its low toxicity. They are more flexible and offer better protection against extreme weather conditions.

How long does marine varnish last?

Marine varnish typically lasts for more than ten years, although pigments, temperature, and chemical agents may affect durability. For instance, exposure to direct sunlight can minimize its longevity.

What is the best exterior clear coat for wood?

The best exterior clear coat for wood is marine spar varnish. This finish contains primary ingredients such as linseed and alkyd resin to offer optimal protection to the wood.

Is marine varnish waterproof?

The marine varnish is waterproof. However, its waterproof features are lost when it is used in certain woods. Before you can begin coating, you have to ensure if the varnish’s components are compatible with the surface you intend to paint.

Conclusion – Best Marine Varnish for Wood

Purchasing the best marine for wood is non-negotiable. If you want your furniture or boat to last as long as possible, you need to use the ideal marine varnish.

The best marine varnish will protect your wood furniture and enhance its appearance by creating a glossy finish. With this type of finish, your furniture will last longer without fading or losing its lovely appearance.

This article has provided the best marine varnish for wood. With the comprehensive buyer’s guide, I’m pretty sure you won’t have issues choosing the most suitable finish.

Remember to use the right method application when using any of the varnishes, as it guarantees the finish’s outcome.

Important Reads:

• Top 7 Best Polyurethane for Table Top (Reviews & Buying Guide 2021)
• Best Finish For Pine Dining Table 2021| Finishing a Pine Table

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Wood varnish is an effective means to ‘wear-proof’ any wooden materials on your sailing vessel, ensuring ongoing protection from water damage, mould, and mildew. Typically, marine varnish, sometimes called spar varnish, is applied on both the interior and exterior of a boat, providing an attractive glossy finish, durability in various weather scenarios, optimum water resistance, and UV protection. Check out our full range of marine spar varnish for wood products below or browse other  wood care  products for effective boat maintenance.

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International Original Varnish

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International Schooner Varnish 375ml

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Ronseal Yacht Varnish

Wood type and application can vary coverage

A solvent-based yacht varnish for all exterior wood Offers long lasting protection Waterproofs and protects wood against sun damage Resists cracking, peeling and blistering Enhances the natural beauty of the timber Available in a clear gloss or satin finish High V.O.C content Brand No. of coats 2-3 Coverage Up to 16 per litre Drying time 8  Size 250ml, 500ml, 1L, 2.5L MPN Please Select Size/Option GTIN Please Select Size/Option Customers Also Bought Ronseal Yacht Varnish is a traditional outdoor varnish, ideal for use on bare wood or over existing solvent-based finishes, such as varnish. It protects exterior wood against the elements, and it is flexible so it will not crack, peel or blister. Please Note: This product is not suitable for use on painted wood or decking. Ronseal Yacht Varnish has been specially formulated for use on external, smooth planed wood. Preparation Make sure it's a warm, dry day, above 10°C and that the wood to be varnished is clean, dry and free from dust, dirt and any other surface contaminants. Bare Timber Lightly sand the surface to remove any loose wood fibres, then clean with a lint-free cloth dampened with methylated spirits and leave to dry before varnishing Any old, decayed, loose wood must be removed before treating the affected area with Ronseal Wet Rot Wood Hardener prior to filling Any existing woodworm can be eradicated with Ronseal Woodworm Killer Fill any gaps in the wood with Ronseal High Performance Wood Filler or Ronseal Multi Purpose Wood Filler Previously Stained or Varnished Timber All varnish in loose or poor condition should be removed with a scraper or a dedicated varnish remover Sand thoroughly to provide a key to help the varnish stick, then clean with a lint-free cloth dampened with white spirit and allow to dry Application Always do a small test area before beginning any project to assess colour and compatibility. Follow the manufacturer's instructions on the tin at all times. Stir thoroughly before and during use. Apply Yacht Varnish evenly with a good quality synthetic brush in the direction of the wood grain Apply 3 coats to bare wood; 2 coats should be sufficient for previously stained or varnished wood Allow 8 hours between each coat Before the final coat, give the surface a light sanding and wipe with a lint-free cloth dampened with meths Cleaning Equipment Remove as much varnish as possible from brushes before cleaning. Clean using white spirit or a dedicated paint brush cleaner. Do not empty into drains or watercourses. Maintenance If the finish shows signs of wear over time, simply apply a fresh coat of Ronseal Yacht Varnish , following the Preparation and Application instructions above. This product is an exterior product. Often with exterior products, they are flexible to cope with the expansion and contraction of the wood, but they do not tend to be as durable, meaning that this wouldn't last as long in this environment. Why not consider Ronseal Diamond Hard Interior Varnish instead. Ronseal Yacht Varnish - Safety Information This is the Business. Water based product by same company remained sticky and gathered dirt on a high use table for 2 years, it seemed never to dry. It has a lovely finish, takes quite a while to harden Easy to apply and a quality finish, delighted with the results. Easy to use, satin leaves a good sheen Easy to use and gives a great finish. We use this varnish to coat our wooden garden sculptures and the finish is really good while giving great protection. This is not clear varnish. I largely discarded the instruction (apart from the temperature) and thinned the first 3 coats. Then, applied other two full coats and the wood took a nice rich colour. Very pleased with it. This the only external varnish that I use, and I have never owned a yacht! A good hard protected finish and it lasts years in an English garden. Easy to use and the result is good! Good shape of tin with well fitting lid. Product should be stirred well. Easy to apply, satin finish as expected, has slight colour the amount depending on the base. Only time will tell how well it performs in sun, wind and rain. It waterproof the shed keeping the wood looking beautiful Easy to use with a great finish. Will use it again. Used this as the cheaper one I normally use was out of stock. Supposedly drys quicker, but wasn’t rock hard for about a week. I have foot marks all over. Many finishes have a relatively quick drying time and are able to be put into light use, however the products will continue to cure over a period of days and weeks before becoming fully hard. Each product will vary in timings and we recommend light use and no covering such as rugs for a minimum of 7 days. Painted 5 Internal doors excellent finish. You must rub down the old work first to get a good finish. I use it on my wooden canoe. It looks fantastic. Used in restoration of 3 old park benches for village. Base treatment on new timber was Barrettine Premier Golden Brown. That was followed by a couple of coats of this Yacht Varnish. They look truly magnificent, and should last a few years. In a perfect world, it would set a little harder, but I am dragging heavy loads across the wood every day. Applied really well no complaints. Used it to protect an oak front door. Looks great and doesn't darken the oak. Not had a winter on it yet. Arrived quickly and does exactly as it says on the tin. Easy to apply too. Only used a bit so hard to judge but seems good. Product Restock Notification Enter your email address and we will email you when [product] [variation] is back in stock. This information will not be shared and you will not be signed up to our mailing list Thank you! We'll send you an email as soon as [product] [variation] is back in stock. Search for: Login / Register No products in the basket. Return to shop FREE SHIPPING AVAILABLE ON ORDERS OVER £75.00* Yacht Varnish Interior & Exterior Palatine Yacht Varnish is a tough, traditional varnish for new, previously painted, stained or varnished surfaces.  Its quality and high gloss finish means it’s perfect for yachts, boats and other exterior wood projects. Also available in an aerosol . £ 10.79 – £ 39.90 Stay Social. Connect with us.  Description Technical Information Directions For Use Data Sheets Reviews (15) Trustpilot Reviews Durable, traditional solvent based exterior yacht varnish, with a clear gloss finish for new, previously painted or stained wood.  Superior quality, high gloss yacht varnish is formulated to provide a tough coating for ensuring yachts, boats and exterior wood stay looking fantastic. Good coverage and quick drying time enables you to complete jobs quickly with great results. Our Yacht Varnish provides superb durability, also making it ideal as a coating for windows and doors to protect them from poor weather. Palatine Yacht Varnish Key Features: Outdoor clear varnish – ultimate protection against chemicals and pollution for exterior wood Ideal for: hard and soft wood – including doors, windows and marine woodwork Quick drying: Touch dry in 2 hours Weather resistant exterior varnish: prevents UV and water damage Extremely durable: resists cracking and blistering Excellent wet edge and flow out Suitable for both new or previously painted or stained surfaces Appearance and Application Tips: The finish of Palatine Yacht Varnish is clear with a high gloss. While we advise it has a slight “straw” tint, our customers use it because of its clarity. Browse the reviews for more details. With a good wet edge it is easy to apply by brush or roller. It can also be applied by conventional or airless spray. We recommend a minimum of two coats of yacht varnish for maximum protection and always allow for the suggested time between coats (see directions for use above). This coating is touch dry in two hours and hard dry in 8 hours. It can be used on hardwood, softwood, metals and other substrates (contact us if you are unsure). When applying an outdoor varnish or paint, avoid windy conditions which can blow dust and grit into your wet surface. For thinning and cleaning tools and equipment use Carbosolv White Spirit. Yacht varnish is an excellent tough coating with an attractive high gloss finish. Our other varnishes for wood include Polyurethane Varnish  and Polyurethane Floor Varnish . For an eggshell finish yacht varnish, see Coo-Var Yacht & Seaplane Varnish Eggshell . If you are unsure which varnish to use give us a call on 01942 884122.  Take care if removing old coatings containing lead, please visit the BCF for an illustration on how to deal with this. Colours Available: Clear. Pack Sizes: 1 Litre, 2.5 Litre, 5 Litre. Coverage / Drying Times: Surface Dry: 2 hours Hard Dry: 8 hours Overcoat : after 24 hours Keep coated areas dry for a minimum of 24 hours following application. Please note, drying times will be extended at low temperatures. Do not apply when ambient temperature falls below 10ºC Theoretical Coverage: 12 – 14m² per litre. (Coverage rate can be affected by such variables as type and condition of substrate, type of application equipment and individual method of application.) Preparation: Proper surface preparation is essential for the success of any protective coating system. Before you begin ensure the area is free from any dust, oil, grease, old coatings and surface contaminants. All surfaces to be painted should be clean, dry and free from loose and flaking material, dust, grease etc. Rub down previously gloss painted surfaces with fine waterproof abrasive paper and rinse thoroughly. Application: Best results are obtained in warm (minimum 10°C), dry conditions. Mix thoroughly for approximately 2 minutes using a drill stirrer. A wooden batten at least 25mm wide is also ideal. Apply an even coat using a brush, short to medium pile roller on smooth surfaces. For spray application by either airless or conventional spray a dilution ration of no more than 10% is recommended with Palatine White Spirit by volume applying thin coats allowing each one to dry before applying subsequent coats. Once dried, a second coat can be applied at full strength. This will prolong the life and performance of the coating. Thinning and Cleaning: Use Palatine White Spirit. A minimum of two coats is recommended on bare wood to optimize the coatings performance. Please note: The colours on the product listings are only given as a guide. This is due to the fact that every computer monitor has a different capability to display colours. In addition, everyone sees these colours differently. Sample pots are available to order upon request. Always carry out a test patch (approximately 100x100mm) before full application to ensure compatibility with previous coatings and the substrate, and to ensure the colour achieved meets your requirements. Failure to do so will result in a product refund claim not being accepted. Product Documents Yacht Varnish SDS Yacht Varnish TDS Detailed 15 reviews for Yacht Varnish Interior & Exterior andylonnen (verified owner) – 25th May 2022 Continued use of this Varnish for my Boatbuilding work. Excellent application and good drying qualities. Definitely recommend! John Charles William Mellows – 30th March 2022 varnish arrived quickly and I have been very pleased with the results and the build up of coats. The price is excellent compared with other well known brands of marine varnish. Highly recommended Andy Lonnen (verified owner) – 13th October 2021 Repeat ordering of this product. Really pleased with coverage and weather resistance. Excellent trouble free service and delivery. mckinnell60 (verified owner) – 1st June 2021 The varnish flows well and good build up. Time will tell on UV resistance of course, especially on our boats, but indications are this varnish will replace my usual pricey marine big names. Alex Smith (verified owner) – 14th March 2021 Bought for coating outside mud kitchen. Excellent coverage which gave wood vibrant shine. Quick dispatch and delivery. Reginald P (verified owner) – 12th August 2020 EXCELLENT QUALITY AND AT A GOOD PRICE WORKS EVERY BIT AS GOOD AS THE BIGGER NAMED Leonard Vaughan. (verified owner) – 24th June 2020 I Bought 1ltr of Yacht Varnish Clear High Gloss for interior and Exterior Absolutely Brilliant and Highly Recommended. bubblesforkids – 4th May 2020 We bought this exterior yacht varnish on ebay to start with, with lockdown closing DIY stores. WOW we have been making Novelty Chalkboards for 5 years now and never found a clear varnish that didn’t show up yellow tinges. This is amazing on all levels, CLEAR very CLEAR and makes our chalkboards so hard, so will help maintain the wood. We are ordering another 5 litre today after only 1 week since last can. I cannot say how happy we are, our whites, pale pastel coloured paints are all looking how they should. Well done Palatine Paints, keep up the good work. Would be great if you could introduce COLOURED exterior paints too as we would certainly be buying these. Rosemary/Davie @ Novelty Chalkboards. Scotland 🙂 jason – 5th May 2020 Thanks Rosemary and Davie for your comments. We do coloured exterior paints! Have a browse around the website. Our two hour gloss and our Palatine Professional in matt and satin are all ideal for exterior use and can be made in any colour from the RAL Classic and BS381c and BS4800 colour charts T Rys – 14th April 2020 I used this varnish for veranda wood construction. It was easy to apply, very efficient, nice glossy finish. Will buy again. Jake – 13th April 2020 Very good finish. Thickly applied. Used on floor. Covered 45 square meters. Joe Law – 9th April 2020 Found this company on Amazon and ordered 2.5 lt unit. Delivery was very quick and product excellent to administer. First class service mcheyne17 – 8th April 2020 Excellent product and excellent service. Clare really helpful on the chat line. A pleasure to deal with this company and a great find on the internet. 5 star company! R Johnson – 12th February 2020 I have used the marine varnish on the external rubbing rails and cockpit of a South Coast One Design and found it has lasted far better than the Epifans yacht varnish or the Hempel Quick Drying yacht varnish, particularly for high wear areas. Malcolm McGeoch – 15th January 2020 top quality in every respect (1 Litre) Peter Fuller – 15th January 2020 Excellent service & product (1 Litre) Add a review Cancel reply Your review  * Name  * Email  * Save my name, email, and website in this browser for the next time I comment. You may also like… Polyurethane Varnish – 5 Litre Decorative Paint General Purpose Varnish To provide the best experiences, we and our partners use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us and our partners to process personal data such as browsing behavior or unique IDs on this site and show (non-) personalized ads. Not consenting or withdrawing consent, may adversely affect certain features and functions. 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Image Unavailable To view this video download Flash Player TotalBoat - 409314 Gleam Marine Spar Varnish, Gloss and Satin Polyurethane Finish for Wood, Boats and Outdoor Furniture (Clear Gloss Quart) Purchase options and add-ons Brand TotalBoat Material Resin Finish Type Satin Compatible Material Wood Coverage 360-400 sq ft/gallon About this item CLASSIC MARINE VARNISH contains premium tung oil, phenolic resins and UV blockers for a beautiful transparent amber finish on all types of interior and exterior wood on boats, strip canoes, kayaks, outdoor wooden bar tops, garage doors, furniture and more DURABLE URETHANE SPAR VARNISH with maximum UV resistance; it remains flexible after curing, and won't peel or crack when the wood expands and contracts with seasonal humidity and temperature changes EASY TO APPLY BY BRUSHING, ROLLING OR SPRAYING: For a high gloss finish, apply 4-6 coats of Gleam Gloss; for a sleek satin finish, build with coats of Gleam Gloss varnish and use Gleam Satin for the final coats; Application Temp: 45-105F, 0-85% RH SELF-LEVELING FINISH DRIES FAST: Recoat in 1 hr. @ 72°F; apply up to 3 coats in 1 day; if desired, thin 5-10% with TotalBoat Special Brushing Thinner 100 (brush/roller application) or 10-20% with TotalBoat Spray Thinner 101 (spray application) AVAILABLE IN GLOSS OR SATIN (low-sheen), in Pint, Quart and Gallon sizes; Coverage: 360-400 sq ft/gallon; Thinner: TotalBoat Special Brushing Thinner 100 (brushing/rolling); TotalBoat Spray Thinner 101 (spraying) Additional Details Frequently bought together More items to explore Product details Is Discontinued By Manufacturer ‏ : ‎ No Product Dimensions ‏ : ‎ 4.5 x 4.5 x 5 inches; 2.2 Pounds Item model number ‏ : ‎ 409314 Date First Available ‏ : ‎ October 26, 2015 Manufacturer ‏ : ‎ TotalBoat ASIN ‏ : ‎ B00J33B0MW Country of Origin ‏ : ‎ USA #11 in Household Polyurethanes, Shellac & Varnish Product Description TotalBoat Gleam is a classic style marine spar varnish that not only withstands the rigors of life at sea, it also makes the ideal wood varnish and wood sealer for all of your outdoor wood furniture, bar tops, tiki bars, picnic tables, patio tables, Adirondack chairs, antique wooden truck beds and more. This high-quality tung oil and phenolic resin formula contains UV inhibitors that provide lasting beauty, and a durable finish that expands and contracts with seasonal temperature changes to prevent chipping, cracking, and peeling. Use Gleam on interior and exterior wood for a tough, waterproof, marine polyurethane finish that won't fade. It's improved formula flows better, won’t leave brush marks, and has better overcoating & cure times, making it easy to get great results. Each coat provides medium build with excellent flow-out. You'll love how it flows off the brush and self-levels, leaving a smooth durable surface. Gleam gives all wood surfaces a radiant, transparent, warm amber hue in gloss or satin (matte) finish. For a high gloss varnish finish, apply 4-6 coats of Gleam Gloss. For a sleek satin finish, build with coats of the Gleam gloss varnish, and apply Gleam Satin for the final 1-2 coats. Whichever formula you choose, you’ll appreciate that Gleam’s improved formula allows you to scuff and apply additional coats quicker than ever because you can recoat in 1 hr. at 72 degrees F, and apply up to 3 coats in 1 day. Compare to gloss varnish, matte varnish, polyurethane wood finish, exterior polyurethane, matte polyurethane and polyurethane sealer products such as Epifanes Clear Varnish, Wood Finish Matte, Wood Finish Gloss, Pettit Flagship Varnish, Z Spar Captain's Varnish, Minwax Helmsman Spar Urethane, Rust-Oleum Marine Spar Varnish, System Three Clear Marine Spar Urethane Varnish Coating, and Old Masters Spar Marine Varnish. All TotalBoat products are developed for boaters by boaters, to provide great value and great results. 100% made in the USA. Important information [MULTIPLE STEPS] Top Brand: TotalBoat From the manufacturer. TotalBoat Gleam Classic Marine Spar Varnish: A Faster, Easier Way to Get a Deep, Warm Amber Finish on Bare, Previously Varnished, or Epoxy Coated Wood. These premium gloss and satin marine-grade varnish formulas are preferred for their ease of use, self-leveling properties, exceptional beauty, and maximum durability.. TotalBoat Gleam creates a finished look that's stunning in its beauty, gloriously highlighting the grain of all wood types. Its premium tung oil and phenolic resin formula is perfectly suited for clear coating applications. Gleam’s transparent amber Gloss and Satin finishes are easy to apply, with smooth flow out on bare wood, previously painted 1-part varnish in good condition, or over cured epoxy. Whether you choose Gloss or Satin, Gleam's fast-drying, easy-to-use formulas ensure a gorgeous amber finish with exceptional clarity and durability. Tip: Achieving optimal results for gloss vs. satin applications. For Gloss applications , apply 4-6 coats of TotalBoat Gleam Gloss varnish to achieve desired finish & depth. For Satin applications , use build layers of Gleam Gloss, and directly prior to the final coat, sand lightly with 320-grit sandpaper & finish with 1 or 2 coats of Gleam Satin. Using Gleam Satin over built-up layers of Gleam Gloss showcases the natural wood grain more clearly than Satin alone. Get a higher build per coat. Compare Gleam to other varnishes - its higher build per coat plus faster overcoating and cure times save you time and effort without compromising finish quality. TotalBoat Gleam Marine Spar Varnish Features Compare to Z Spar Captains Varnish and Flagship Varnish, and Epifanes Clear Varnish. Classic Tung oil marine spar varnish is easy to apply, and creates a radiant, durable finish. Self-leveling varnish dries fast—recoat in as little as 1 hour at 72°F. Waterproof formula will not turn yellow over time. Easy to apply by brush, roller, or sprayer. For interior and exterior use above the waterline. Thinning - Application: Brush/Roller - TotalBoat Special Brushing Thinner 100; Spray Gun - xylene. Available in Gloss and Satin, in Pint, Quart, and Gallon sizes. Improved Gleam varnish formulas have better overcoating & cure times so you can finish varnishing faster. In optimal conditions, you can recoat in as little as 1 hour @72°F, and you can apply up to 3 coats in 1 day—no need for sanding between coats. Gleam does not need to be sanded if overcoated within 48 hours. If 2-3 coats have been applied in one day, allow 48 hours drying time, then sand lightly with the grain, using 320-grit sandpaper, before overcoating or before applying the final coat. Tip: When you begin varnishing bare wood, you're not actually putting varnish onto the surface, but into it, because the wood will soak up the first couple of coats (called sealer coats). For an easier, faster way to apply sealer coats, use TotalBoat Wood Sealer varnish primer before applying Gleam. Wood Sealer is easy to apply, dries fast, and doesn't need sanding between coats. A total of 4-6 coats will give the best finish and depth. The more coats—the better the finish. Yearly maintenance tip: Clean Gleam surfaces with an all-purpose boat soap (such as TotalBoat Boat Soap) and water. To maintain the beautiful finish on exterior surfaces, apply 1-2 coats of Gleam annually. Most satin finish varnishes are used on interior surfaces only, such as cabins, trim, and floors because they don't protect against the sun's harmful rays. TotalBoat Gleam Satin varnish is different - it provides protection on exterior surfaces, too. So use our Gleam Satin outdoors on tillers, decks, coamings, hatches, outdoor furniture, and more. Customer Reviews Price $119.99$119.99 — $35.14$35.14 $36.99$36.99 One-Part Finish Application ✓ ✓ ✓ ✓ Sizes Pint, Quart, Gallon Pint, Quart, Gallon Pint, Quart, 4 Quart Quart, Gallon Finish Gloss, Satin High Gloss, Matte Amber Gloss, Clear Gloss, Clear Satin Clear Primer Protection from Sun Damage Great Superior Great Good Thin With TotalBoat Special Brushing Thinner 100, mineral spirits, xylene (spraying) TotalBoat Special Brushing Thinner 100, xylene (spraying) No thinning necessary TotalBoat Special Brushing Thinner 100, xylene (spraying) Coverage 250 sq. ft./gal. @ 3 mils wet 250 sq. ft./gal. @ 3 mils wet 8--100 sq. ft./quart @ 3 mils wet 250-400 sq. ft./gal. @ 3 mils wet (varies by substrate porosity) # of Coats 4-6 6-8 2-3 2-3 Dry Time to Recoat 1 hour @ 72°F 1 hour @ 72°F 1 hour @ 72°F 2 hours @ 72°F Apply With Brush, Roll, or Spray Brush, Roll & Tip, or Spray Brush, Roll & Tip, or Spray Brush, Roll, or Spray It all started simply enough. As boaters, we wanted better stuff for our own boats. Even our favorite products, the ones we'd come to rely on, had room for improvement. It'd be nice if they could hold up longer, cure faster, coat better, apply easier, and—since we all know boat ownership creates a mini maelstrom in your pocket—cost less. So we took everything we knew from 35 years of customer feedback, combined that with our own boating knowledge, and after a few years of rigorous R&D, TotalBoat was born. Launched, rather. By boaters, for boaters. Need help? The members of our TotalBoat Tech Team are boat owners who really know their stuff. So whether you're trying to figure out what to buy or what's the best solution for your particular project, they have years of hands-on training and experience—and a passion to help you succeed. What's in the box Spar Varnish Videos for this product Click to play video Total Boat Gleam. Im impressed. take a closer look. ✅ Stone Broke Adventure Customer Review: Amazing varnish. Best one I have ever used Stephen Waller TotalBoat GLEAM 2.0 MARINE SPAR VARNISH - Comparing Finishes Jamestown Distributor How to Apply: TotalBoat Gleam Marine Spar Varnish Save your leftover varnish and never waste any! This works! TotalBoat Gleam 2.0 Marine Spar Varnish Looking for specific info, customer reviews. 5 star 4 star 3 star 2 star 1 star 5 star 79% 10% 5% 2% 4% 79% 5 star 4 star 3 star 2 star 1 star 4 star 79% 10% 5% 2% 4% 10% 5 star 4 star 3 star 2 star 1 star 3 star 79% 10% 5% 2% 4% 5% 5 star 4 star 3 star 2 star 1 star 2 star 79% 10% 5% 2% 4% 2% 5 star 4 star 3 star 2 star 1 star 1 star 79% 10% 5% 2% 4% 4% Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness. Customers say Customers like the ease of use, quality and flow of the household varnish. They mention that it goes on clear and easy, has good adhesion and that it dries very fast. They appreciate appearance, and smoothness. That said, opinions are mixed on thickness and value. AI-generated from the text of customer reviews Customers are satisfied with the quality of the household varnish. They mention that it is an excellent product, and is the best stuff they have ever used. They are also pleased with the results, and say that it holds up well. "... Very pleased with the results ." Read more "...my book, has a beautiful glossy finish, easy to sand and durable to the outdoor environment ...." Read more "Works great. Used it on the wood on an old canoe. Excellent product !" Read more "... It worked great ." Read more Customers are satisfied with the appearance of the varnish. For example, they mention it's smooth and easy to apply, produces a beautiful finish, and has a great shine. Some say the finish still looks new after a year of use. "was easy to apply and looks fantastic " Read more "...Brushes on easily and looks fantastic " Read more "...-leveling, dries in 2 hours which is a plus in my book, has a beautiful glossy finish , easy to sand and durable to the outdoor environment...." Read more "...I brushed on 3 coats. It looked great , but a few hours later I notice one area w/brush marks & a couple that had almost a puddle, like it was too..." Read more Customers find the household varnish easy to apply. They say it goes on clear and easy, with good adhesion. Some mention that it sets up fast, and some say it's easy to work with. "was easy to apply and looks fantastic" Read more "...It was easy to use . I made a bar top for a tiki bar and used this to finish the bar top. Very pleased with the results." Read more "... Brushes on easily and looks fantastic" Read more " Easy to apply , has an excellent finish quality and has turned out to be quite durable months later" Read more Customers like the flow of the varnish. They say it dries very fast, allowing for multiple coats in minimal time. They also say it looks great and drier than other varnishes. "...What I love the most about this varnish is it's self-leveling, dries in 2 hours which is a plus in my book, has a beautiful glossy finish, easy to..." Read more "...The stuff looks great & dried quickly for spar varnish . I brushed on 3 coats...." Read more "...Gleam 2.0 is very different than typical spar varnish - It dries in one hour , self-levels quickly, and you can put down three coats easily in a..." Read more "...It has rained a few times since it was used and water beads up , doesn't penetrative...." Read more Customers are satisfied with the smoothness of the varnish. They mention that it goes down extremely smooth, flows onto the wood extremely smoothly, and is easy to apply. The varnish stays fairly soft for several days until it completely cures. "...But after applying it for week now, sunny everyday, no rain, low humitdity , highs near 90, I believe it is mostly urethane based...." Read more "...using a natural bristle wood stains and finishes brush - it went down extremely smooth -- the bush glided along the wood like it was lubricated and..." Read more "...remark: while the product dries indeed very quickly, it stays fairly soft for several days until it completely cures." Read more "Fast drying allows for multiple coats in minimal time. Smooth and easy to apply. Produced a beautiful finish. Very pleased...." Read more Customers are mixed about the value of the household varnish. Some mention it's worth the money, while others say it'll never be value for money. " Very nice product " Read more "...It is definitly not value for the money , it is expensive." Read more "...Bottom of can was rounded. Got lucky the can wasn't leaking. Wonderful product though," Read more "The can looked like someone hit it with baseball bat!!!!! Very expensive stain !!!!! To show up like that!!!!!" Read more Customers are mixed about the thickness of the varnish. Some mention it is very thin and almost water like, making it glide on smoothly. They say it is not overly thick-flowing, and thin coats get the best finish. However, some say it dries very thin, takes lots of more coats than others, and has low solids. "I found it to be a bit too thin and drippy for a large vertical surface, so I won’t use it again on the transom of my antique boat, but it has nice..." Read more "...This stuff is amazing. First, it's perfectly thinned right out of the can -- making it glide on so smoothly, you'll wonder if it's really varnish...." Read more "Great varnish, little hard to handle as it is very thin going on , like old style tung. Produces a wonderful finish...." Read more "...It has thinned out in a few bad places ...." Read more Customers are dissatisfied with the finish of the household varnish. They mention that it's not a gloss finish, it'll blotch, and it doesn't last six months. Some say that the varnish poured out around the rim making a mess. "...with 300 grit between coats, but NO MATTER WHAT I did, it was NOT a gloss finish , and when water dropped on it, it left a discoloration for a few..." Read more "...It didn’t fall off but varnish poured out around the rim making a mess. I lost a lot of very expensive varnish and had a mess to clean up...." Read more "Be sure to mix well. I applied once without mixing properly and varnish didn't cure . Wiped it off with thinner and re-applied...." Read more "...But beware- it’s really not a satin finish . It may not be as glossy as the gloss product buts it’s a gloss finish none the less." Read more Reviews with images Sort reviews by Top reviews Most recent Top reviews Top reviews from the United States There was a problem filtering reviews right now. please try again later.. 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You should upgrade or use an alternative browser . Advice needed - using yacht varnish indoors Discussion in ' Painters' Talk ' started by Corcar , Dec 1, 2022 . Corcar New Member Hi I’m wondering if anyone can offer any advice about a log cabin install and using yacht varnish as an indoor floor varnish. We’ve had a 5x3 log cabin installed in our garden. It has a 28mm tongue and groove timber floor. Our installer mentioned that his painter friend always used yacht varnish on the floor to get a good strong finish. I took his advice without looking into it (yes stupid I know) and whacked down a coat of Ronseal Yacht Varnish. It’s been nearly two weeks and the room is still unusable. The fumes are unreal and having now read up on it it’s toxic as hell (v high voc rating, external use only). It’s open all day to ventilate but it’s November so it only gets up to about 8-10 degrees max. Am I destined to rip the whole floor out or is there a way round this? Can I seal in the VOCs with another product? Sand back and use a water based polyurethane? Any and all advice welcome.   DBCDIY Screwfix Select You need to get the temp up to around 20c degrees to allow the VOCs/solvents to evaporate and thus the varnish dry - whilst you keep out the way. A electric dehumidifier that heats and removes water vapour would be ideal...   DBCDIY said: ↑ You need to get the temp up to around 20c degrees to allow the VOCs/solvents to evaporate and thus the varnish dry - whilst you keep out the way. A electric dehumidifier that heats and removes water vapour would be ideal... Click to expand... Dust from sanding is, in my opinion, introducing a new risk to your health! Personally, I'd get some heat on to ensure it is fully 'cured' rather than just 'dry to the touch' - and live with it...given it's an outdoor cabin - NOT your living room!   DBCDIY said: ↑ Dust from sanding is, in my opinion, introducing a new risk to your health! Personally, I'd get some heat on to ensure it is fully 'cured' rather than just 'dry to the touch' - and live with it...given it's an outdoor cabin - NOT your living room! Click to expand... billfromarran Active Member Yacht varnish is designed for yachts. Guess what the clue is?   billfromarran said: ↑ Yacht varnish is designed for yachts. Guess what the clue is? Click to expand... The product safety info is here: https://www.wood-finishes-direct.com/datasheets/ronseal-yacht-varnish/SDS-Ronseal-Yacth-Varnish.pdf Drowsiness and skin dryness/cracking appear - to me - to be the only 'hazards to humans'... which I would have thought relate to the application of the product - rather than ongoing effects once applied and cured. However it's your decision and I've given my opinion! I was brought up - and used - leaded petrol; coal fires; DDT; red lead paint; creosote and asbestos before they were identified as health/environmental damaging products - and have survived. You are right to be concerned about your family's welfare...so it really is down to you and your perceived problems with a varnish that people in boatyards are using indoors on a daily basis ...   DBCDIY said: ↑ The product safety info is here: https://www.wood-finishes-direct.com/datasheets/ronseal-yacht-varnish/SDS-Ronseal-Yacth-Varnish.pdf Drowsiness and skin dryness/cracking appear - to me - to be the only 'hazards to humans'... which I would have thought relate to the application of the product - rather than ongoing effects once applied and cured. However it's your decision and I've given my opinion! I was brought up - and used - leaded petrol; coal fires; DDT; red lead paint; creosote and asbestos before they were identified as health/environmental damaging products - and have survived. You are right to be concerned about your family's welfare...so it really is down to you and your perceived problems with a varnish that people in boatyards are using indoors on a daily basis ... Click to expand... Share This Page Log in with Facebook No, create an account now. Yes, my password is: Forgot your password? Search titles only Separate names with a comma. Search this thread only Display results as threads Useful Searches Recent Posts Dismiss Notice Varnishing wood floors: Expert tips on how to prep and apply Varnishing wood floors will add a smart, durable finish to protect the surface. Find out how to make it happen Preparation and application What varnish should I use? Varnishing wood floors makes perfect sense if you want to retain the natural beauty of the wood grain for all to see. It adds a clear protective layer that will keep the floor looking good for longer. And you can choose what finish you want to ensure that it matches up with your decor. Most types of wood flooring are a good choice for varnish, but not all. If yours is (most natural woods are), here you’ll find what you need to do to get it ready for varnishing, what varnish and tools to use, and how to apply for the best finish.  Kirk has over 12 years’ experience in the wood flooring industry, including roles in sales, quality and training.  Kirk’s knowledge of everything from subfloor preparation to maintenance and repairs is unsurpassed.  Varnishing wood floors: Preparation and application Whether you are tackling a new wooden floor or restoring an old wood floor to its former glory, you've got to do your prep first before applying any varnish. There will be a little more work when tackling an old wooden floor, but not too much I promise.  How do you prepare floorboards for varnishing?  Whatever the condition and finish of a floor, the preparation process is similar. Kirk Evans, Technical Manager at Woodpecker Flooring . Explains the general process, “Start by cleaning the floorboards thoroughly, removing any dirt or debris.” Follow this up by, “Sanding the surface with fine-grit sandpaper to smooth out imperfections and remove old finishes.” Finally, “Vacuum the dust, then wipe the boards with a damp cloth. Ensure the wood is dry before applying a primer or stain if desired.” This method is a good choice for bare wood floors, but if you have waxed, painted, or stained floors you may need to consider stripping before sanding. Note, if you have a stained wooden floor it will be difficult to remove a dark stain and replace it with a lighter stain. You can add more stain to get a darker, richer tone and even a varnish to add a matt, satin, or gloss finish and an extra layer of protection.  How do you apply varnish to wood floors?  Adding varnish to a wooden floor is typically a choice between a roller, pad and paintbrush. But which should you use and where? Evans shares that, “A brush is ideal for precision around edges and corners, while a foam roller or pad is great for covering large areas quickly.”  But, “The choice depends on the floor's size and your comfort level,” he adds. The ideal solution is to, “Combine both tools to ensure a smooth, even finish, with brushes handling detail work and rollers managing broader strokes. But how do you get started? “Begin by stirring the varnish gently to avoid bubbles," explains Evans. “Use a high-quality brush or foam roller to apply the varnish evenly along the grain of the wood.” But where do you start? “Start from a corner and work your way out, maintaining a wet edge to prevent lap marks. Let each coat dry thoroughly before applying the next.” What should I use to varnish wooden floors? This may seem obvious – varnish, but there are different types of finish that work well on wooden floors as Evans explains, “Polyurethane varnish is a popular choice for wooden floors due to its durability and resistance to scratches and water.”  He adds, “Traditional varnish provides a more natural finish but may require more maintenance.” What should you use? “We recommend using a water-based polyurethane varnish, for an eco-friendly option that dries quickly and offers excellent protection.”  Try these to get a great varnished wood floor  A quick-drying, low odour polyurethane floor varnish that is ideal for interior wooden floors, leaving a tough, durable finish  A floor varnish formulated for most types of wooden floors that leaves an ultra-hard, scratch-resistant natural finish  This set includes six six-inch high density rollers ideal for paint, varnish and stain. Along with a paint tray and a threaded handle for an extension pole  How long after varnishing can you walk on it?  Varnish needs to dry and cure before it can be fully appreciated. But there are a few factors that will determine how soon you can walk on it and add furniture and rugs. A key consideration is the varnish base. Water-based varnish typically dries quicker than an oil-based varnish. But, as a general guideline Evans suggests that you, “Wait at least 24 hours before walking on the floor with socks or soft shoes. For heavier traffic or furniture placement, allow 72 hours to ensure the varnish has fully cured.” He adds that, “Patience ensures a flawless finish that lasts longer.” Make sure to take note.  Can I put new varnish over old varnish?  Yes you can. But the key factor is the condition of the current varnish. If the varnish is in good condition it will need a clean to ensure that it's free from dirt, debris and grease before you move on to the next step. So what is the next step? Evans shares that you need to, “Lightly sand the existing varnish to create a surface that the new varnish can adhere to.” Use a fine sandpaper grade - a 120-180 grit is typically a good choice. He adds, “Clean thoroughly to remove dust and debris before applying the new varnish. This process revitalises your floor without the need for stripping.”  Varnishing a wooden floor is one option for your home, but you may want to try something different before you add a coat of varnish. Check out our Wood flooring ideas and Best flooring for kitchen guides to get the best from your floor. And, if your looking to get a new wooden floor don’t miss out on reading our How to buy reclaimed wood flooring guide to get a unique and cost effective solution.  Get the Homebuilding & Renovating Newsletter Bring your dream home to life with expert advice, how to guides and design inspiration. Sign up for our newsletter and get two free tickets to a Homebuilding & Renovating Show near you. Steve Jenkins is a freelance content creator with over two decades of experience working in digital and print and was previously the DIY content editor for Homebuilding & Renovating.  He is a keen DIYer with over 20 years of experience in transforming and renovating the many homes he has lived in. He specialises in painting and decorating, but has a wide range of skills gleaned from working in the building trade for around 10 years and spending time at night school learning how to plaster and plumb. He has fitted kitchens, tiled bathrooms and kitchens, laid many floors, built partition walls, plastered walls, plumbed in bathrooms, worked on loft conversions and much more. And when he's not sure how to tackle a DIY project he has a wide network of friends – including plumbers, gas engineers, tilers, carpenters, painters and decorators, electricians and builders – in the trade to call upon. I'm a gardening editor and I love this simple task for instantly improving the look of my lawn New staircase costs: How much can you expect to pay? Where to buy bathroom mirrors with lights for a brighter restroom Most Popular 2 7 common lighting design mistakes and how to avoid them 3 Homeowner refused planning permission for fence after refusing to install hedgehog holes 4 I'm a gardening editor and I love this simple task for instantly improving the look of my lawn 5 Varnishing wood floors: Expert tips on how to prep and apply 241 IMAGES Ronseal Yacht Varnish Ronseal Yacht Varnish Gloss Clear 500ML Yacht Varnish YACHT VARNISH GLOSS 1LT Archives Yacht Varnish Yacht Varnish 1 Litre VIDEO Yacht clear varnish on natural wood bathroom floor England Using a Heatgun to Remove Varnish from an Old Wooden Boat Varnishing a wooden boat Varnish for Wood Stained Hardwood Floors Ask The Experts COMMENTS The Best Marine Varnish: Exterior Wood Finish Tests How We're Testing the Marine Varnishes. Testers applied dozens of exterior wood finishes (22 one-part varnishes, six two-part varnishes, 18 synthetics and satins/varnish alternatives, and eight teak oils and sealers) to small panels of bare solid teak. Each was assigned a number for blind judging and was applied per manufacturers instructions. Best Marine Varnish for Wood- Buying Guide By A Pro TotalBoat Lust Marine Varnish, High Gloss and Matte Finish for Wood, Boats and Outdoor Furniture. Rust-Oleum 207008 Marine Spar Varnish, Quart, Gloss Clear. Epifanes Clear Varnish. Epifanes Clear Varnish (250 ml) Minwax Helmsman Indoor/Outdoor Spar Urethane, Quart, Gloss. Price not available. $19.98. Price not available. $28.79. Everything you need to know about Yacht Varnish Yacht Varnish is an incredibly durable solvent-based varnish that was originally used to on boats to protect the wood and prevent it from decaying over time. Nowadays, this type of product is more commonly used for exterior household projects, when you are looking to give timber a high-gloss finish that lasts. Best boat varnish: 7 top options for gleaming woodwork A traditional marine spar varnish — albeit a good one — is Interlux's Schooner Varnish. With an alkyd base, 47% of tung oil solids, and UV inhibitors to boot, this product is a well-balanced one-part product that is suitable for a variety of uses. This product can be brushed, rolled, or sprayed. Reasons to buy. How to Use Yacht Varnish? (A Step-by-Step Guide) Short Answer. Yacht varnish is a protective coating used to seal and protect wood surfaces on boats. To apply yacht varnish, start by sanding the wood surface with a fine-grit sandpaper. Then, apply a thin coat of the varnish with a brush, working in long, even strokes. Allow the varnish to dry for 24 hours before applying a second coat. What's the best varnish for your yacht? Clear Yacht Varnish: A clear yacht varnish does what it says on the tin: it will create a transparent, glossy finish that does not alter the colour of the wood it is applied to. Matt Yacht Varnish: Using a matt coloured yacht varnish will result in a dull, non-shiny finish that does not reflect light. This can be ideal for hiding flaws or ... How to Apply Varnish to a Wooden Boat Complete prep work: remove old varnish by sanding, rinse down your boat and tape off your area. Use a badger-hair brush when varnishing. Apply a thin first coat, and keep a wet edge. Keep your strokes long and light, brushing from dry back to the wet edge. Sand in between coats—be sure that the varnish is dry and cured before sanding. Boat Varnishes Interlux Sikkens Cetol Marine Gloss Wood Finish - IVA315/QT. $46.92. Pettit Z-Spar Flagship High Build Varnish 2015. $39.99 - $169.99. 1. MAS Epoxies Bristol Finish UV Clear Urethane - BF-QC. $76.02. Awlgrip Awlwood MA Satin Matt Finish. $103.99 - $379.99. Marine Varnish It's used on all types of wood in all kinds of places - floors, furniture, cabinets, wooden boats, and many other indoor and outdoor wood surfaces. Varnish seals and protects wood, and makes it look good. It forms a protective film that prevents moisture, rot, and scratches from damaging wood, while enhancing the depth and beauty of the ... Six-Month Checkup: Long-Term Boat Wood Finish Exposure Test Teak Guard was re-formulated in 2008, after this test began. However, its maker claims our coating should have lasted six to 12 months and attributed the mildew on our test panel to the breakdown of the coatings waterproof top layer. The company says that re-applying the finish sooner would have prevented the mildew. All About Varnishing Your Boat Thin the first coat 50% by volume—1/2 ounce of thinner to every ounce of varnish. Thin the second coat 25 percent, the third 10 percent. Wipe off surface oil with a rag dipped in thinners. Just before varnishing, wipe teak down with an acetone-saturated rag to remove surface oil. Use a foam brush. Clear Yacht Varnish In Satin & Gloss Make sure your wood is dry before you begin. Choose a day that's reasonably warm (above 10°c) and dry. This varnish isn't suitable for decking though. How to prepare wood for varnishing. You will need to remove old stain or varnish by sanding it down. Use 120 grit sandpaper and sand away the old finish. Wipe down the surface with white ... The 13 Best Marine Varnishes Reviewed in 2024 5. TotalBoat 482869 Lust Marine Varnish. TotalBoat is a household name in the marine industry as far as paints and varnishes go. This is the brand's best offering if we're going to consider fundamental factors like durability, shine, and value for money. Tips on applying marine spar varnish to your boat's brightwork Clean prepared surface using a shop vac with brush attachment, then wipe down with a soft rag lightly wetted with the solvent recommended on the varnish can. Lightly wipe with a tack rag right before application. Allow coats at least 24 hours to dry. Later coats need 48 hours to cure properly before being sanded again. Top 7 Best Marine Varnish for Wood (Reviews & Buying Guide 2022) 2. Rust-Oleum 207008 Marine Varnish - Best Durable Marine Varnish. Rust-Oleum Marine Varnish will add natural beauty to the wood and deliver a crystal-clear finish. Although it's an oil-based formula, the amber color will darken over time, leaving you with a more superior finish. Buy Wood Varnishes for Boats Epifanes Clear Varnish 250ml. £ 12.95. Epifanes Rubbed Effect Varnish. £ 23.95 - £ 39.95. Burgess Marine Woodsealer 1 litre. £ 22.99 £ 21.95. Epifanes Woodfinish Gloss 500ml. £ 26.95. Epifanes Easy Flow 1ltr. Ronseal Yacht Varnish Apply Yacht Varnish evenly with a good quality synthetic brush in the direction of the wood grain. Apply 3 coats to bare wood; 2 coats should be sufficient for previously stained or varnished wood. Allow 8 hours between each coat. Before the final coat, give the surface a light sanding and wipe with a lint-free cloth dampened with meths. Yacht Varnish: Durable Coating for Yachts & Boats Yacht varnish is an excellent tough coating with an attractive high gloss finish. Our other varnishes for wood include Polyurethane Varnish and Polyurethane Floor Varnish. For an eggshell finish yacht varnish, see Coo-Var Yacht & Seaplane Varnish Eggshell. If you are unsure which varnish to use give us a call on 01942 884122. TotalBoat TotalBoat - 409314 Gleam Marine Spar Varnish, Gloss and Satin Polyurethane Finish for Wood, Boats and Outdoor Furniture (Clear Gloss Quart) Visit the TotalBoat Store. 4.6 4.6 out of 5 stars 1,342 ratings | Search this page . Amazon's Choice highlights highly rated, well-priced products available to ship immediately. Johnstone's Outdoor Clear Yacht Varnish Gloss 750ml. Product code. 5010426787190. Johnstone's Outdoor Clear Yacht Varnish is the ultimate solution for protecting and enhancing the beauty of your wooden boat or other outdoor wooden surfaces. This varnish is specially formulated to provide superior protection against the harsh outdoor elements, including UV rays, saltwater, and weathering. Ronseal Satin Yacht Varnish Simply place your order online and collect from your preferred store in just 30 minutes. Delivery exclusions apply. Size: 2.5 L. Interior or Exterior Use: Exterior. Suitable for: Wood. Colour: Clear. Colour Family: Clear. Drying Time: 4 hours. Coverage per Litre: 16 m2. Rust-Oleum Marine Coatings Spar Varnish Gloss Clear Oil-based Marine Works above the waterline; apply to exterior wood boat surfaces. Oil-Modified urethane provides a flexible coating that applies easily. Dries to the touch in 2 hours and covers up to 150 sq ft. Gloss finish provides long-lasting protection. Excellent durability and corrosion-resistant in extreme weather conditions using yacht varnish indoors I'm wondering if anyone can offer any advice about a log cabin install and using yacht varnish as an indoor floor varnish. We've had a 5x3 log cabin installed in our garden. It has a 28mm tongue and groove timber floor. Our installer mentioned that his painter friend always used yacht varnish on the floor to get a good strong finish. Varnishing wood floors: Expert tips on how to prep and apply Varnishing wood floors: Preparation and application. Whether you are tackling a new wooden floor or restoring an old wood floor to its former glory, you've got to do your prep first before applying any varnish. There will be a little more work when tackling an old wooden floor, but not too much I promise. 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