7 Best Outdoor Sealer For Wood (Reviewed & Ranked)

by My Modern Cave

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Choosing the right sealer for your outdoor wood projects can be a daunting task. With so many products on the market claiming to protect and preserve wood, it can be hard to figure out which one is best for you. . From water-based sealers to oil-based ones, we have got you covered when it comes to protecting outdoor wood from the elements.

In this article will review and rank 7 of the best outdoor sealers on the market today

What are the Best Outdoor Sealer For Wood

Here are the seven best Outdoor Sealer For Wood. Let’s see each in detail.


#1 Best Overall

L R Liquid Rubber Waterproof Sealant

Take your outdoor projects to the next level with L R Liquid Rubber Waterproof Sealant. This revolutionary sealer is perfect for wood, providing a strong and reliable waterproof barrier that will protect against moisture, rot, and decay while maintaining the natural beauty of your projects. With its powerful adhesion quality, it can easily be applied to painted or unpainted surfaces without any primers required.

Top Features:

UV Stable Stopping The Sun

This Liquid Rubber-Waterproof Sealant has a protective finish that is designed to be UV stable and stand up to the elements. It won’t crack, fade, or chip away like other sealants, making it an ideal solution for flat and metal roofs.

Containing No Solvents

Unlike many other sealants on the market, this Liquid Rubber-Waterproof Sealant does not require any solvents or harsh chemicals in order to get the job done. This means you won’t need to worry about any unpleasant fumes or odors while using it

Waterproof Protection

Keep your roof protected from all kinds of weather with this waterproof sealant. It will stop the sun’s rays from damaging your roof and keep water out so you can enjoy peace of mind knowing your roof will remain safe no matter what happens outside.

Protective Finish For Flat & Metal Roofs

With its versatile applications, Liquid Rubber-Waterproof Sealant can be used on any kind of flat or metal roofs. Plus, it can also be used outside around windows and doors as an added layer of protection against the elements.


  • Protective finish
  • Highly flexible & durable
  • Environmental friendly
  • Waterproof sealant
  • UV stable


  • After a week and sealant still not dry
  • Within a week the coating was bubbling up

MMC’s Take

I recently tried Liquid Rubber-Waterproof Sealant and was impressed with its highly flexible and durable protective finish. It could hold up against the sun’s UV rays, which was really useful. Unfortunately, within a week of using this product, the coating started to bubble up. Overall, it seemed to hold up well but the bubbling issue was disappointing.


#2 Best for
Breville Barista

Gorilla Waterproof Patch & Seal Liquid

Gorilla Waterproof Patch & Seal Liquid is the best choice for keeping wood strong and sealed outdoors. This revolutionary sealer easily absorbs into wood, crevices, seams, and joints to create a deep waterproof bond that stands up to the toughest outdoor conditions. With its quick-drying formula and long-lasting protection against water damage, it’s the perfect solution for sealing wooden decks, fences, railings—anything exposed to harsh weather or moisture.

Top Features:

Temperature & UV Resistant

Gorilla Waterproof Patch Outdoor Sealer for Wood offers superior protection against water, air, and temperature damage. It is also UV resistant, so it won’t fade in the sun. This sealer is designed to provide long-lasting protection for your outdoor wood structures.

Crystal Clear Finish

Gorilla Waterproof Patch Outdoor Sealer for Wood dries crystal clear, so you can keep the natural look of your wood surfaces without sacrificing protection from water or air damage.

Rubberized Coating

This waterproof patch sealer is made with a rubberized coating that is designed to stand up to temperatures and UV rays without fading or weakening over time. You can trust this sealer will remain reliable even in extreme conditions.

Smoothly Covers Small Gaps

Applying the sealer is easy thanks to its easy-to-use formula that spreads smoothly over small gaps and crevices. This ensures a seamless coating that won’t leave behind any noticeable marks or uneven patches. Best of all, it takes just minutes to apply, so you can quickly get back to enjoying your outdoor space.


  • Seal Spray is a flexible
  • Rubberized coating
  • Dries crystal clear
  • Covers small gaps
  • Temperature and UV resistant


  • Really takes more time to dry
  • They were hard as a rock

MMC’s Take

If you’re looking for a waterproof sealer to protect your outdoor wood, the Gorilla Waterproof Patch Outdoor Sealer is a great choice. It has a rubberized coating that dries crystal clear and covers small gaps. Its only downside is that it takes longer to dry than some other sealers. However, it’s still worth the wait for the protection it provides.


#3 Best for
Breville Grind Control Coffee Maker

Storm Stain Protector

Protect your outdoor wood from the elements with Storm Stain Protector. This outdoor sealer is designed to block moisture and repel water, while protecting against sun damage and fading. The advanced formula creates a strong barrier against rain, wind, snow, mold, mildew and UV rays, preserving your wooden furniture or decking for years to come. Its eco-friendly formula ensures that both you and the environment remain safe during application – no harsh chemicals or fumes necessary!

Top Features:

Prevent Color Fading

Our sealer helps protect your outdoor wood surfaces against the elements, providing a durable barrier that lasts for years. It helps keep your outdoor furniture looking like new season after season without cracking or chipping due to exposure to rain, snow and sun.

Semi Transparent Stain
Aiper Seagull Pro get $150 off

Our storm stain protector gives you a premium finish that brings out the natural beauty of your outdoor wood surfaces. It’s semi-transparent stain adds color while still allowing the original grain pattern of the wood to show through.

Ready-To-Use Formula

Storm Stain Protector is a ready-to-use outdoor sealer that can help protect your wood from the elements. The formula is easy to apply and helps protect your wood from rain, wind, sun and other weather conditions.

Highlights The Natural Beauty Of The Wood

Storm Stain Protector helps enhance the natural beauty of your wood grain without obscuring it. This outdoor sealer will help make your wood look more vibrant and beautiful.


  • Protect your exterior wood surface
  • Easy to apply
  • Protect from UV and all weather
  • Highlights the natural beauty
  • Suitable for many wood substrates


  • The lid it was not even close to useable
  • Sealer it began to fade and peel off

MMC’s Take

At MMC’s, we recently tried Storm Stain Protector Outdoor Sealer for Wood and were really pleased with the results. It was easy to apply and provides a great level of protection from UV rays and all kinds of weather. The sealer was fade-resistant, so our wood surfaces stayed looking great for longer. We didn’t have any issues with peeling either. Highly recommend this product!


#4 Best for
Gevii 10-Cup Drip Coffee Maker

Seal-Once Marine Premium Wood Sealer

Transform your outdoor wood surfaces into a thing of beauty with Seal-Once Marine Premium Wood Sealer! Our powerful, waterproof sealer and preservative is designed specifically for marine environments and is applied in just one coat. Formulated with eco-friendly, non-toxic ingredients, our sealer penetrates the wood’s surface to protect it from moisture damage while using less than half the amount of solvent found in other sealers.

Top Features:

Protects From Saltwater Spray

With Seal-Once Marine Premium Wood Sealer, you can rest assured that your wood will be protected from saltwater spray for years to come. The advanced formula prevents fading, cracking and discoloration while providing a strong defense against water damage.

Fast-Drying Protector

Applying this sealant couldn’t be easier! Simply shake well before use and apply it evenly with a brush or roller. Its fast drying time helps make this process even simpler, so you can get back to enjoying your marine projects in no time.

Easy Clean Up

When it comes time to clean up after using Seal-Once Marine Premium Wood Sealer, you don’t have to worry about scrubbing or soaking – just wipe away any excess product with a damp cloth! This makes cleanup fast and effortless so you can move on to the next project without delay.

Ultra-Low VOC

Seal-Once Marine Premium Wood Sealer is an environmentally friendly product with an ultra-low VOC content, making it safe for both the environment and you. You can feel good about using this sealer without worry of harsh fumes or odors.


  • Deck stain
  • Waterproof wood sealer
  • Ultra-low VOC
  • Cellular level coating
  • Fast drying protector


  • Maintained wet edge but overlap showed even after two coats
  • Sealer container is damaged with view of stain

MMC’s Take

I recently used Seal-Once Marine Premium Wood Sealer on my boat and am very pleased with the results. It is an ultra-low VOC, fast-drying protector that effectively protects from saltwater spray. The sealer applies easily and evenly, making it a breeze to use. The packaging was a bit damaged upon arrival but the stain was still usable. I would highly recommend this product to anyone looking for a reliable wood sealer for marine applications.


#5 Best for
Cuisinart DGB-900BC Grind

Seal-Once Nano+Poly Penetrating Wood Sealer

Seal-Once Nano Poly Penetrating Wood Sealer is the perfect outdoor sealer for all your wood projects. With its unique, waterproof nano particles, this sealant provides superior protection for your wood in any weather. It’s easy to apply and penetrates deep into the wood structure, so it won’t flake or peel off over time.

Top Features:

UV Stable Coating

With this sealant you can have peace of mind knowing that your wood surface is protected from UV damage. The UV stable coating option helps to further protect your wood surfaces from fading and discoloration caused by sun exposure.

Concrete Against Water Damage

Along with its superior protection against wear and tear, Seal-Once Nano Poly Penetrating Wood Sealer also works to prevent water damage on concrete surfaces. Keep your outdoor living space looking great for years to come with this powerful sealant!

Easy Cleanup

This sealant is easy to use and clean up – simply apply and then clean up any excess with soap and water for a hassle free job.

Top Notch Protection

Seal-Once Nano Poly Penetrating Wood Sealer provides top-notch protection against wear and tear, ensuring your wood surfaces stay looking great for years to come


  • Water based polyurethane wood finish
  • Floor sealer applicator
  • Waterproof sealer
  • UV-stable coating option
  • Ultra-low VOC


  • It stayed tacky and never hardened
  • At the time of mild winter it peeled, faded.

MMC’s Take

MMC’s recently had the opportunity to test Seal-Once Nano Poly Penetrating Wood Sealer and we were impressed. It provided top-notch protection against wear and tear, and the option of a UV-stable coating was a great plus. However, we found that it stayed tacky and never hardened. Overall, this is a great sealer for protecting wood surfaces, but make sure to follow the instructions carefully.


#6 Best for
SPINN Coffee Maker Pro


Protect your home from the elements and defend yourself against water damage with RAIN GUARD PRO Micro-Seal; a revolutionary, all-in-one waterproofing solution designed to keep your property safe from heavy rains and extreme weather. Our unique micro sealing technology is applied directly onto the surface of your windows, walls and other vulnerable areas to create a protective barrier that locks out moisture while still allowing for ventilation.

Top Features:

Pro Grade Multi Surface Sealant

RAIN GUARD PRO Micro-Seal was designed to provide superior protection for multiple surfaces including wood, metal, concrete, masonry and more. It creates an impenetrable barrier that will protect your home from the elements no matter what surface it’s on.

Non-Yellowing Formula

RAIN GUARD PRO Micro-Seal is specifically formulated to withstand the toughest weather conditions like rain, snow and sleet while still remaining completely non yellowing formula. This sealant will keep your home safe no matter what Mother Nature throws at it.

Low Odor & Zero VOC

RAIN GUARD PRO Micro-Seal is completely free of any harsh chemicals or toxins which makes it safe to use around your family and pets as well as the environment! With its low odor and zero VOC you don’t have to worry about exposure to hazardous fumes either – making it the perfect choice for eco conscious homeowners everywhere

Protects Up To 300 Square Feet

RAIN GUARD PRO Micro-Seal is a pro-grade multisurface sealant that creates a hydrophobic barrier, protecting up to 300 square feet against rain, water, and other elements. It’s designed to last for years while remaining completely non-yellowing and low odor with zero VOC.


  • Easy To Apply
  • Anti-Graffiti
  • Low Odor and Zero VOC
  • 10 Year Satisfaction Promise
  • Clear, Natural Finish


  • Its not sealing completely
  • The product only lasted two weeks

MMC’s Take

I recently tried out Rain Guard Pro Micro-Seal and was overall pretty impressed. It creates an effective hydrophobic barrier and promises to protect up to 300 square feet – which is great for larger outdoor projects. However, I found that it didn’t completely seal the surface, so I’d recommend using it for smaller projects. All in all, it’s a good option for protecting outdoor surfaces from water damage.


#7 Best for
Mueller Premium Espresso Machine Coffee Maker

Acri-Soy Penetrating Concrete Wood Sealer

Acri-Soy Penetrating Concrete Wood Sealer is the ideal solution for preserving and protecting your timber surfaces from the elements. Its advanced formulation penetrates deep into concrete and wood, providing superior protection while also enriching the color of your outdoor decking or patio.

Top Features:

Long Lasting Surface Finish

Acri-Soy Penetrating Concrete Wood Sealer provides long lasting protection against water, UV rays, and other environmental elements. It is designed to extend the life and appearance of your outdoor wood surfaces for years to come.

Plant Based 100% Acrylic Hybrid Soy Oil Emulsions

This sealer is made with a 100% acrylic hybrid soy oil emulsion that is eco-friendly and safe for the environment. It also has an Eco-Poly Polyurethane sealer that provides further protection against harmful environmental elements.

Coverage Up To 400 – 600 sq.ft. Per Gallon

This sealer has a typical coverage of 400 to 600 square feet per gallon, ensuring superior coverage for large areas with just one application.

Bio Renewable Ingredients

This sealer is made with bio-renewable ingredients that can be used on a variety of surfaces such as concrete, wood siding, decking, fencing and more. It not only protects these surfaces but also enhances their look with its attractive finish


  • Long lasting surface finish
  • 100% acrylic hybrid soy oil emulsions
  • Multiple uses
  • Coverage is 400 – 600 sq.ft. per gallon
  • Made with bio-renewable ingredients


  • It coats the tile like a glue and dulls the surface
  • The wood began to warp from exposure to moisture

MMC’s Take

MMC’s has recently tried Acri-Soy Penetrating Concrete Wood Sealer and we’re impressed with its long lasting surface finish. It’s made from 100% acrylic hybrid soy oil emulsions, making it an eco-friendly, durable sealer option. Unfortunately, it did leave a coating on tile surfaces that was like glue and dulled the surface. All in all, we found it to be a great option for sealing concrete and wood surfaces.

What is a Outdoor Sealer For Wood?

A sealer for outdoor wood is an essential tool for those looking to protect their wooden furniture, decks and other structures from the elements. It is a layer of protection to help keep your wood looking beautiful and new for years. A sealer serves two primary purposes: preventing water damage and staining caused by exposure to harsh weather conditions, as well as protecting the wood from UV rays that can cause fading and discoloration over time.

The most common types of sealers used are acrylic-based or polyurethane-based formulas. Acrylic based sealers tend to be thin and provide a good level of protection against moisture while remaining easy to apply with a brush or roller. Polyurethane based sealers offer stronger protection against the elements but require multiple coats in order to achieve maximum effectiveness, making them more laborious than acrylic-based formulas.


In conclusion, there are many different types of outdoor sealer for wood that can be used to protect and enhance any outdoor project. The seven sealers reviewed in this article offer a variety of protection, appearance, and cost levels to suit different needs. Be sure to consider the characteristics of each sealer when deciding which is best for your project. Doing some research before purchase will help ensure you get the right product for your specific needs.

Frequently Asked Questions about Outdoor Sealer For Wood

What is the best way to seal wood for outdoor use?

When it comes to outdoor wood projects, proper sealing is essential. A quality sealant can help protect the wood from moisture, rot and other environmental damage caused by exposure to the elements. But with so many different types of sealants available on the market, it can be difficult to know which one is best for your particular project.

The best way to determine which type of sealant will work best for your outdoor wood project is to consider what conditions the wood will be exposed to. For example, if you’re building a deck or other structure that will be frequently exposed to rain or an area with high humidity levels, then you’ll want a water-resistant sealant that also offers protection from UV rays and extreme temperatures.

Which is the best waterproof Outdoor sealer for wood?

When it comes to protecting your outdoor wood surfaces, using the best waterproof sealer is essential. Whether you’re looking for a product that’s good for sealing decks, fences, furniture or other wooden items, there are many different types of waterproof sealers available. But how do you know which one is best?

The key to finding the perfect waterproof sealer for your needs is knowing what type of wood you have and understanding its specific characteristics. If you have an unfinished hardwood like cedar or redwood, then an oil-based sealer will work wonders for preventing water damage and rot. For softer woods like pine or birch, a latex-based sealer may be better suited because it offers more flexibility and a smoother finish.

How long does outdoor sealer for wood last?

When it comes to outdoor wood projects, the right sealer can make all the difference. With its protective qualities, outdoor sealer for wood helps protect your outdoor projects from water damage and sun bleaching. As such, it’s important to understand how long this type of sealant will last before reapplication is necessary.

Fortunately, there is no one-size-fits-all answer when it comes to the longevity of outdoor sealer for wood. Its shelf life typically depends on a variety of factors including the quality of materials used in production and how much exposure to the elements your project sees during its lifespan. Generally speaking however, you can expect an average lifespan ranging between one and five years for most types of products. To prolong the life expectancy even further, make sure to apply multiple coats and reapply as needed every few years depending on conditions.

Can you seal untreated wood for outdoor use?

When building outdoor furniture and structures, wood is a common material used due to its durability and affordability. While treated wood can be expensive and off-gassing of chemicals can be hazardous, it is still important to choose the right type of untreated wood for outdoor use. Thankfully, untreated wood can still be sealed against the elements to ensure that your projects are protected from rot and decay for years to come.

Sealing untreated wood requires patience as well as the right kind of products. First, you’ll need a weatherproofing sealant specifically formulated for use on exterior woods such as cedar or redwood—never use sealants meant for indoor applications like deck varnish or polyurethane finishes.

How do you seal and protect raw wood?

Protecting raw wood is essential to ensuring that it lasts as long as possible, and there are a few steps you can take to ensure your raw wood stays in great condition. Depending on the type of wood, sealing and protecting it could be as simple as applying a coat of wax or polyurethane sealant. For tougher woods such as cedar and redwood, however, it’s important to also apply an oil-based sealer before waxing or varnishing. Here’s what you need to know about how to properly seal and protect raw wood:

Begin by sanding the surface of the wood lightly with fine grain sandpaper until smooth. This helps create a clean slate for the protective coating so that all surfaces will adhere correctly.

When should I use wood sealer?

When it comes to protecting and preserving wood, a sealer is an essential item. Whether you’re making furniture or painting a piece of furniture, there are several times when using a sealer can be beneficial. Knowing when to use a wood sealer will ensure that the surface of your wooden project remains intact for years to come.

First, before beginning any staining process on the surface of the wood, it is important to apply a coat of sealer so that the color will remain consistent throughout. This provides added protection from absorption and ensures that any varnish applied after will adhere properly. Additionally, if you plan on painting bare wood surfaces, it is recommended to first apply multiple coats of sealer as this helps prevent paint chipping or fading over time.

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