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Wood is a beautiful and natural material that is used for a variety of outdoor furniture and structures. However, without proper protection, wood can become damaged by the elements, such as rain, wind, and sun. That’s why applying a clear coat to wood is essential to preserve its beauty and extend its lifespan. However, choosing the Best Exterior Clear Coat for Wood can be a daunting task. We provide the answer to the question; What Is the Best Exterior Clear Coat for Wood?
The best exterior clear coat for painted wood is one that will protect the paint from the elements and provide a long-lasting, durable finish. A good clear coat should be UV resistant, waterproof, and able to withstand extreme temperatures. It should also be able to resist fading, chipping, and peeling.
The top pick on our list is the exterior clear coat from Rainguard International. It offers excellent protection against humidity, heat or cold, rain, and snow which can cause wood rot over time as well as rust formation. Moreover, it comes in a high gloss finish that not only gives you an impressive shine but also helps to protect the surface from dirt and moisture accumulation. Below is a list of the top 8 best that you can buy online:
A clear coat is an important part of the painting process. In general, a clear sealant creates a protective layer against UV rays and other environmental factors that can damage your car or truck’s exterior appearance. The best way to maintain this protection is by sealing it with an exterior clear coat – which also provides deeper color capacity for more vibrant colors.
By using our recommendations, you can be sure that your outdoor projects are protected from the elements. They also come in water or oil-based versions and may easily penetrate into the wood pores, preventing algae and mold formation.
Types of Exterior Clear Coat for Wood: What Is the Best Exterior Clear Coat for Wood?
There are a few different types of exterior clear coats that can be used on wood. The best one for your project will depend on the type of wood you are using, the desired finish, and the level of protection you need. Some of the most popular types of exterior clear coatings for wood include:
Water-based
Water-based clear coats are popular for their quick drying time, low odor, and low levels of volatile organic compounds (VOCs). They provide a durable, long-lasting finish and are available in a range of sheens, from matte to gloss. However, water-based clear coats are not as durable as oil-based or polyurethane clear coats and may yellow over time.
Oil-based
Oil-based clear coats are popular for their durability, and resistance to yellowing, chipping, and cracking. They are also resistant to water damage and provide a warm, natural look to wood. However, oil-based clear coats can take longer to dry and have a strong odor.
Polyurethane
Polyurethane clear coats are extremely durable and provide excellent protection from the elements. They are available in both water-based and oil-based formulas, and are commonly used for flooring, decking, and other high-traffic areas. However, polyurethane clear coats can be more difficult to apply and have a longer drying time.
Acrylic
Acrylic clear coats are popular for their durability, resistance to yellowing, and low levels of VOCs. They provide a clear, glossy finish and are easy to apply. However, acrylic clear coats can be more expensive than other types of clear coat and may not be as durable as polyurethane clear coats.
Varnish
Varnish clear coats are popular for their durability and resistance to yellowing. They provide a warm, natural look to wood and are available in a range of sheens. However, varnish clear coats can take longer to dry and may require more maintenance than other types of clear coat.
Shellac
Shellac clear coats are popular for their fast-drying time, low odor, and resistance to yellowing. They are easy to apply and provide a clear, glossy finish. However, shellac clear coats are not as durable as polyurethane or oil-based clear coats and may require more frequent reapplication.
Environmental impact of clear coat type
It is important to consider the environmental impact of the clear coat you choose. Some clear coats are made with chemicals and ingredients that may be harmful to the environment and wildlife, so it is important to choose a clear coat that is safe and eco-friendly. Consider looking for clear coats that are made with water-based formulas or contain low levels of VOCs (volatile organic compounds) to minimize their impact on the environment.
Comparison of clear coat types and their protection level
There are various types of exterior clear coats available, each with its own level of protection and durability. For example, oil-based clear coats offer a deeper and longer-lasting finish, but they also take longer to dry and require more maintenance. On the other hand, water-based clear coats dry faster and are easier to clean up, but they may not be as durable as oil-based clear coats. It is important to compare the different options and choose a clear coat that provides the level of protection and durability needed for your specific outdoor wood project.
Clear coat maintenance tips
Proper maintenance is important for extending the life of your clear coat and keeping your outdoor wood looking its best. Some tips for maintaining your clear coat include cleaning the wood regularly, reapplying the clear coat as needed, and storing the wood in a protected location when not in use. Following these tips will help to keep your outdoor wood looking its best for years to come.
Importance of proper surface preparation before clear coat application
Proper surface preparation is essential for ensuring the clear coat adheres properly and lasts as long as possible. This may include sanding the wood, cleaning it thoroughly, and allowing it to dry completely before applying the clear coat. Taking the time to prepare the surface properly will result in a better finish and longer-lasting clear coat.
Factors To Consider When Choosing the Best Exterior Clear Coat for Wood
When choosing the best exterior clear coat for wood, there are several factors to consider, including the type of wood, weather conditions, desired appearance, and maintenance requirements.
Type of Wood
The type of wood you are using for your furniture or structure will play a role in determining the best clear coat. Softwoods, such as pine and cedar, may require a clear coat with greater water resistance, while hardwoods, such as oak and maple, may require a clear coat with greater durability.
Weather Conditions
The weather conditions in your area will also play a role in determining the best clear coat. If you live in an area with frequent rain and high humidity, you’ll want a clear coat with good water resistance. If you live in an area with intense sun exposure, you’ll want a clear coat with good UV protection.
Desired Appearance
The desired appearance of your furniture or structure will also play a role in choosing the best clear coat. If you want a matte finish, for example, you’ll want to choose a clear coat with a matte sheen. If you want a glossy finish, you’ll want to choose a clear coat with a high gloss.
Maintenance Requirements
You’ll want to consider the maintenance requirements of the clear coat. Some clear coats require frequent reapplication, while others may require less frequent maintenance. You’ll want to choose a clear coat that fits your lifestyle and maintenance schedule.
RELATED:8 Best Clear Wood Finishes: Buyer’s Guide-2021
Types Of Wood and Recommended Clear Coat Type
Different types of wood may require different types of clear coat, based on their natural properties and the conditions they will be exposed to. Let’s explore some common types of wood and their recommended clear coat type.
Pine
Pine is a softwood that is often used for outdoor furniture and structures. It is relatively lightweight and readily available, making it an economical choice for many projects. Pine has a tendency to warp and crack, and can also be prone to discoloration from exposure to the elements. A clear coat with good water resistance and UV protection is recommended for pine, to protect it from damage and enhance its natural beauty.
Cedar
Cedar is another softwood that is commonly used for outdoor furniture and structures. It is naturally resistant to rot and decay, making it a good choice for outdoor use. Cedar can also be prone to fading and discoloration, so a clear coat with good UV protection is recommended. A clear coat with a matte or satin finish can help enhance the natural beauty of cedar’s reddish-brown color and natural grain.
Oak and Maple
Oak and maple are both hardwoods that are often used for outdoor furniture and structures. These woods are naturally dense and durable, but can be prone to cracking and warping. A clear coat with good durability and water resistance is recommended for oak and maple, to protect them from the elements and enhance their natural beauty. A clear coat with a high gloss finish can help enhance the natural grain and color of these woods.
Teak
Teak is a hardwood that is commonly used for outdoor furniture. It is naturally resistant to rot and decay, making it a good choice for outdoor use. Teak can also be prone to fading and discoloration, so a clear coat with good UV protection is recommended. A clear coat with a natural or satin finish can help enhance the natural beauty of teak’s golden-brown color and natural grain.
The Best Exterior Clear Coat for Wood? 8 Best On Amazon
Let’s take a look at the individual items and their unique characteristics, which will assist you in obtaining the greatest possible results for your outdoor woodworking tasks.
1. DEFY Extreme Exterior Wood Stain, Crystal Clear
- Water-Based Semi-Transparent Wood Stain – This water-based deck stain allows the wood grain to show through with a beautiful semi-transparent, natural matte finish. It's great for staining wood decks, fences, siding, playsets, outdoor patio furniture, and more.
- Fortified With Zinc Nano-Particle Technology – It’s like sunscreen for your wood. Tiny zinc particles dispersed throughout the stain reflect damaging UV rays, preventing premature graying and color loss.
- Durable Quality That Lasts – DEFY Extreme wood stains are made with the highest quality resins available that have better resistance to fading and darkening.
- Easy to Maintain - DEFY is easy to apply and maintain by applying a single maintenance coat of DEFY Extreme Wood Stain when the wood starts to show signs of wear.
- 250 VOC Compliant - Water based and VOC compliant everywhere except California.
Product Description
Have you been coveting an exquisite, transparent stain for your decks, sidings, playsets, outdoor furniture, fences, and other items? The DEFY Extreme Exterior Wood Stain has it all. This environmentally friendly colorant protects wood from fading while being a water-based product. Furthermore, it ensures that the material retains its natural appearance.
This product is enhanced with zinc nano-particle technology, which acts as a sunscreen by reflecting away harmful UV rays. As a result, it protects your wood from color fading and premature graying.
The DEFY wood stain also helps protect your wooden surfaces because of the incorporated high-grain resins that are darkening and fading-resistant.
Furthermore, this product is simple to maintain. You may effectively maintain the material by applying DEFY wood brightener followed by a single DEFY Extreme Exterior Wood Stain coat.
This is a superior-quality product that resists mildew, mold, and algae while also being waterproof thanks to its anti-water properties. You may use this stain on any surface without having to worry about water damage or staining because it’s resistant to these environmental elements.
Pros
- Water-resistant and mildew resistant
- Highly durable compared to lower quality stains that require more frequent reapplication.
- Does not darken with time
- It is easy to apply
Cons
- Only ideal for outdoor use due to its limited resistance to sunlight exposure.
2.TotalBoat-486490 Lust Marine Varnish, High Gloss, and Matte Finish for Wood, Boats, Outdoor Furniture (High Gloss, Gallon)
- 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
Product Description
This exterior varnish is a blend of UV absorbers and stabilizers, which help protect the material from damage due to ultraviolet (UV) light exposure while also enabling it to withstand water and humidity without staining or drying out. This product is easy to apply and its high adhesion level ensures that it will last for over a year.
A high-quality varnish from TotalBoat, this product is compatible with all exterior paint and varnish coats. This means you can use any color combination to enhance the beauty of your outdoor wood items while also protecting them from damage caused by ultraviolet (UV) light exposure as well as water and humidity.
This product boasts superior adhesion that ensures it will last for over a year, which is more than double the lifespan of other exterior clear coats on this list.
Pros
- Compatible with all paint and varnish coatings to provide you maximum flexibility when enhancing your wood’s appearance while protecting against environmental damage
- Relatively inexpensive
- A high adhesion level ensures long-lasting performance, even in harsh weather conditions.
- Waterproof and able to resist yellowing better than other products on the market.
Cons
- Only ideal for outdoor use due to its low resistance to sunlight exposure.
3. Roxil Wood Protection Cream Instant Waterproofing Clear Treatment
- ✅ Weatherproofs wood for 10 years - Shower-proof application - Instantly Waterproofs
- ✅ Reduces water uptake for improved resistance to warping and cracking
- ✅ Breathable, Colourless Protection - Creates an invisible waterproof barrier that protects the wood.
- ✅ One coat application by brush or roller, no drip formulation. Effective on softwoods and weathered hardwoods.
- ✅ Roxil Wood Protection Cream will cover approximately 50 to 60 sq. ft. per gallon
Product Description
This exterior clear coat is meant for use on untreated wood surfaces and can be used on wooden furniture, decks, fences, doors, garage floors as well as outdoor items like garden benches.
It will protect your untreated wooden surfaces from moisture and dirt while also providing a clear coating that allows you to see the natural beauty of your work without hiding anything behind a milky film or yellowing with time like other products on this list.
You may use this silicone wood protection cream to coat weathered hardwoods and softwoods for a ten-year warranty of waterproofing. Furthermore, this product has a single cream emulsion formulation that you may simply apply with either a roller or brush in one coat to unpainted softwood timber.
This cream also lets you apply it rapidly and accurately, with no risk of splashback or runoff on horizontal or vertical surfaces. However, to obtain the greatest results, clean the treated surfaces with biocidal wood cleaner. Apply a suitable wood rot treatment for particularly susceptible surfaces if necessary.
Pros
- Offers more than 10 year’s protection
- Quick and easy to use with no mess or hassle involved
- Ideal for outdoor surfaces as well as untreated wooden ones that need a clear coating to let them show their natural beauty
- A silicone formulation offers superior durability, dirt resistance, and protection against moisture damage.
Cons
- Not ideal for painted wood since it may compromise or affect the paint job
- Not easy to remove once applied.
- It also has a strong odor that may be difficult for some users to tolerate.
4. Minwax Helmsman Spar Urethane, Clear Semi-Gloss
- PROTECTIVE CLEAR FINISH – Minwax Helmsman Spar Urethane is specially formulated as a protective varnish for wood for interior and exterior projects. It contains special UV blockers that reduce the sun’s graying and fading effects.
- EFFECTIVE YEAR ROUND – This wood varnish forms a protective barrier against rain and moisture to protect your projects and keep them looking their best. Special oils allow the finish to expand & contract with the wood as seasons and temperatures change.
- VERSATILE – Ideal for use on doors, windows, trim, bathroom cabinets, bar tops, kitchen countertops, outdoor furniture and more.
- SEMI-GLOSS FINISH – Give your wood projects a sleek finish with this semi-gloss varnish. It protects the natural beauty of the wood and offers a long-lasting, semi-shiny sheen for a modern look.
- A BRAND YOU CAN TRUST – Minwax is America’s leading brand of wood finishing and wood care products. Since 1904, we have been inspiring consumers to Keep on Finishing. We offer consumers a complete line of products to meet every wood finishing need.
Product Description
Minwax Helmsman Spar Urethane, Clear Semi-Gloss is an exterior clear coat that will protect your wooden surfaces from water damage and yellowing. Since it has a semi-gloss finish to allow more light while still providing necessary protection against the elements, this product can be used on other outdoor projects such as decks, fences, garden furniture, or even concrete structures like patios and driveways.
It’s a great choice for anyone who wants to give their exterior wood surfaces the extra protection they need without compromising on beauty.
Pros
- Helps protect your wood surfaces from water damage and yellowing
- Spar urethane helps prevent the wood surfaces it’s applied to from warping, cracking, or splitting.
- Suitable for other outdoor projects such as decks, fences, garden furniture, or even concrete structures like patios and driveways.
- It features a low odor that is easier on those who have difficulty tolerating strong smells for long periods of time.
- It comes with an easy-to-apply formulation.
- Comes in a clear semi-gloss finish that will help prevent yellowing while still allowing light to pass through.
Cons
- It may take more than one coat for the results you desire, so this product is not ideal for those who want a quick solution.
5. TotalBoat Gleam Marine Spar Varnish, Gloss, and Satin Polyurethane Finish for Wood
Product Description
Gleam Marine Spar Varnish, Gloss, and Satin Polyurethane Finish for Wood comes in both a gloss finish as well as satin to give you more options based on the look you want. While it’s a water-based formula that is easy to clean up with soap and warm water, this product is also solvent-free so you won’t have to worry about toxic chemicals or fumes that could cause harm even to children and pets.
This exterior clear coat from TotalBoat is designed to be applied on surfaces such as fiberglass, wood, or metal. It’s a great choice if you want to protect your boat while still adding just the right amount of shine.
Pros
- Gives you more options since it comes in both gloss and satin finishes
- Water-based formula that is easy to clean up with soap and warm water
- Solvent-free so you don’t have to worry about toxic chemicals or fumes that can cause harm to children and pets.
- It dries quickly without the need for surface preparation.
- Comes in a multi-purpose product that can be used as an exterior clear coat or even varnish.
- It can even be used on various surfaces like fiberglass, wood, or metal.
Cons
- Comes only in a matte finish and no other options such as gloss or satin are available.
6. RUST-OLEUM 250231 Outdoor Clear Satin Finish
- The product is Gallon Out CLR Sat Finish
- Elegant design and Smooth finish
- The product is manufactured in United States
- Varathane Gallon Outdoor Crystal Clear Satin Finish
- Packed with UV absorbers and offering unbeatable protection against the elements
Product Description
RUST-OLEUM Outdoor Clear Satin Finish comes with a low odor that is easier on those who have difficulty tolerating strong smells for long periods of time. It provides excellent protection against the various environmental hazards associated with being outdoors such as humidity, heat or cold, rain, and snow while also coming in an easy-to-apply formulation.
Its water-based formula comes in an easy-to-spray that has a smooth finish and you’ll have better control thanks to the adjustable nozzle on this exterior clear coat from Rustoleum.
This makes it great for covering large surfaces or small corners and edges where dirt tends to accumulate. What’s more, it’s non-yellowing so your wood still looks beautiful with less concern about discoloration over time from exposure to sunlight, rain, or snow.
Pros
- Provides excellent protection against the various environmental hazards associated with being outdoors such as humidity, heat or cold, rain, and snow.
- It comes in a low odor that is easier on those who have difficulty tolerating strong smells for long periods of time.
- The water-based formula comes in an easy-to-apply formulation so you can have a smooth finish.
- You’ll have better control thanks to the spray that has an adjustable nozzle.
- It’s non-yellowing so your wood still looks beautiful with less concern about discoloration.
Cons
- You may need more than one coat to get impressive results.
7. Rainguard International CU- 0101 Seal Acrylic Urethane Coating High Gloss, Clear Coat Sealant
Product Description
This exterior clear coat from Rainguard International is UV resistant so it is great for outdoor projects without the risk of damage from exposure to sunlight, rain, or snow. Moreover, it can work on a variety of surfaces such as fiberglass, wood, and metal. It also features an easy-to-apply formulation so you have a smooth finish while better control thanks to its adjustable nozzle.
What’s more, it is designed to resist water-based stains like dirt and mildew accumulation. Pros It provides excellent protection against the various environmental hazards associated with being outdoors such as humidity, heat or cold, rain, and snow. The high gloss finish also gives you an impressive shine while protecting your surface from dirt and moisture accumulation.
Moreover, this exterior clear coat from Rainguard International is solvent-free so you don’t need toxic chemicals or fumes that can cause harm to children and pets. Cons You may want to apply more than one coat in order to get better results.
This exterior clear coat from Rainguard International comes in a high gloss finish that not only gives you an impressive shine but also helps to protect the surface from dirt and moisture accumulation. What’s more, it is designed to resist water-based stains like dirt and mildew accumulation.
Pros
- It provides excellent protection against humidity, heat or cold, rain, and snow.
- Gives you an impressive shine
- Protects your surface from dirt and moisture accumulation.
- The exterior clear coat is solvent-free so there’s no need for toxic chemicals.
Cons
- You may want to apply more than one coat in order to get better results.
8. Rust-Oleum Clear 902 Wolman Classic Wood Preservative
- EPA-registered, fungicidal exterior wood preservative and water repellent
- 100% clear formula shows natural wood color and allows for natural graying
- Paintable and stainable after 24 hours, great as a primer to extend top-coat service life on any exterior wood intended to be painted or stained
- Preserves decks, porches, fences, siding, outdoor furniture, playsets, virtually all wood items exposed to weather and rain
- Can be applied immediately to new wood
Product Description
This exterior clear coat from Rust-Oleum is ideal for decks, fences, and other outdoor wood surfaces thanks to its advanced formula that can resist water absorption which in turn will help prevent the wood from rotting. It has an easy application process since no sanding or priming is required.
Additionally, it comes with a rust-resistant spray tip that prevents clogging and provides you with superior coverage for your projects. Pros It does not require sanding or priming before applying which makes the process faster and easier so you can finish in less time without compromising quality results.
It offers superior coverage over your projects so you get better results in less time. Cons It is not recommended for indoor use which means that if you want to apply this exterior clear coat indoors, then it needs to be covered, and/or the area has to be ventilated.
Pros
- It does not require sanding or priming.
- Offers superior coverage over your projects so you get better results in less time.
- Does not require sanding or priming before applying.
- Provides superior coverage for better results in less time.
Cons
- It is not recommended indoors; items need to be covered and/or ventilated.
Applying the Clear Coat
Applying a clear coat to your outdoor furniture or structure is a simple process that can be done with a brush, roller, or spray gun. The process involves cleaning the surface of the wood, sanding it to a smooth finish, and applying the clear coat in even, thin coats. Let’s explore the steps in more detail.
Cleaning the Surface
The first step in applying a clear coat is to clean the surface of the wood. This involves removing any dirt, dust, or debris that may interfere with the adhesion of the clear coat. A mild soap and water solution or a specialized wood cleaner can be used to clean the surface. The wood should be allowed to dry completely before proceeding to the next step.
Sanding the Surface
Once the surface of the wood is clean, it should be sanded to a smooth finish. This will help the clear coat adhere better and create a smoother, more even finish. Sanding can be done by hand or with an orbital sander, using progressively finer grits of sandpaper until a smooth finish is achieved.
Applying the Clear Coat
Once the surface is clean and sanded, it’s time to apply the clear coat. This can be done with a brush, roller, or spray gun, depending on your preference and the type of clear coat you are using. It’s important to apply the clear coat in even, thin coats, allowing each coat to dry completely before applying the next. This will help ensure a smooth, even finish and prevent drips or runs.
Recommended clear coats for different types of outdoor wood furniture
Not all clear coats are suitable for all types of outdoor wood furniture. For example, some clear coats may work better for outdoor decks and fences, while others may be better for outdoor furniture, such as chairs and tables. It is important to choose a clear coat that is specifically designed for the type of outdoor wood furniture you are working on to achieve the best results.
FAQs
How often should I reapply clear coat to my wood?
The frequency of reapplication will depend on the specific clear coat and the conditions it is exposed to. In general, most clear coats will need to be reapplied every 2-3 years, but this can vary based on factors such as exposure to sunlight, rainfall, and temperature changes.
Can I use a clear coat on any type of wood?
Yes, clear coats can be used on a variety of different types of wood, including cedar, pine, redwood, and more. However, it is important to choose a clear coat that is specifically designed for the type of wood being used, as some clear coats may not work as well on certain types of wood.
Is it necessary to sand the wood before applying clear coat?
Yes, it is important to sand the wood before applying clear coat. This will help to remove any rough spots, knots, and other imperfections that could impact the appearance and durability of the clear coat.
Can I apply clear coat to pressure-treated wood?
Yes, you can apply clear coat to pressure-treated wood. However, it is important to allow the wood to dry completely and acclimate to the outdoor environment before applying the clear coat.
Can I apply clear coat to painted wood?
Yes, you can apply clear coat to painted wood, but it is important to make sure that the paint is in good condition and has been properly prepared before applying the clear coat.
Can I use a clear coat on interior wood as well as exterior wood?
Yes, some clear coats can be used for both interior and exterior applications. However, it is important to choose a clear coat that is specifically designed for the intended use and environment, as some clear coats may not perform well in certain conditions.
Conclusion
Exterior clear coats play a vital role in protecting and preserving outdoor wood from the elements, such as sun, wind, and rain damage. Choosing the right clear coat for the job is essential for ensuring the longevity of the wood and maintaining its aesthetic appeal. It is important to consider factors such as the type of wood, exposure to weather, and intended use when selecting the best exterior clear coat. Proper application and maintenance are also key in achieving the best results and extending the life of the clear coat.
Reference: Minwax
