The Best Outdoor Wood Sealer for 2020

The Best Outdoor Wood Sealer for 2021

There is a fair chance that you might have seen damage in your outdoor wooden furniture due to extreme weather conditions.

For most of us, this trauma has been a burden on our eyes, watching our beloved wood products rotting outdoors and wishing there was something we could do.

Sometimes it is your handmade wooden furniture, the fences that you painted yourself or the treehouse you put up for your children. To see them get destroyed like that is surely painful.

However, the good news is that you don’t have to worry about protecting your outdoor furniture anymore by putting it in the garage when evil weather shows up. You can simply put wood sealers on them and worry less.

Wood Sealers

Wood sealers have been quite a useful tool to help protect your outdoor wooden furniture. Many households prefer using wood sealers to protect their wood products instead of getting involved in rather difficult and outdated protective measures.

This item is a pretty simple one to use and the best part is you can do it all on your own!

We reviewed tons of products for you and without delaying any further, let us put in front of you the best outdoor wood sealers.

1. Mod Podge Waterbase Sealer, Glue, and Finish for Outdoor, CS11220 Clear Finish

Mod Podge is a product of Plaid Inc. It has been on the market for more than 40 years. Mod podge is a well-recognized and trusted brand. Used for the ‘Decoupage’ once, now it has also come to be used as one of the most trusted wood sealers around the world.

This item works as a glue and a wood sealer both, which makes it an all-around great product.

If you are a craftsman and you are working on an outdoor project, this might be the right choice for you.

The best part of the Mod podge water base sealer is the easy utilization of it. You can do all the work by yourself and this is what makes Mod Podge stand out among its competitors.

Mod podge can be used on different surfaces, such as wood, tin, and terra cotta. You might not have to look for other products to use when you have this on hand.

It provides good protection against sunlight and rain, meaning you can do all your outdoor projects without any worry.

Mod podge is made up of non-toxic formulas and it gives a water-based look which makes it quite safe to use.

It also possesses an appreciable quality, it is straightforward to clean up when wet with soap mixed with water. This makes it hassle free.


  • Formula: Water based and non toxic
  • Size: 8 ounces and 16 ounces
  • Dimensions: 4.3 inches x 2.4 inches x 2.4 inches


  • Easy to use
  • Useable on different surfaces
  • Non-toxic
  • Water resistant
  • All in one solution
  • Effective protection
  • Effortless cleanup
  • Secure to use


  • Expensive
  • It is not waterproof
  • Does Not provide UV protection
  • Not suitable for large surface area

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This might be the one product craftsmen love the most.

2. Trewax Professional Stone and Tile Indoor and Outdoor Sealer Finish

The pioneer of surface sealers, Trewax was founded in 1935 and still one of the leading companies in the surface protection industry.

This product is one solution to all your outdoor sealing needs. Specially used for tiles and masonry craft, this product works wonders when utilized properly.

Trewax works as both an indoor as well as an outdoor sealer, which makes it a unique product among the market.

This item gives an acrylic urethane finishing, which offers the surface durability against extreme outdoor and indoor conditions.

Trewax Professional may be used on un-glazed Saltillo tiles, quarry tiles, bricks and grout, and stone floors. Every surface can be fully optimized with Trewax Professional.

It is an extremely useful sealer for people who can’t stand high-odor chemicals. This product has a low odor which won’t irritate or trigger you even if you are sensitive to chemical smell.

Dries fast enough hence gives you no worry about children stepping on it.


  • Formula: Acrylic urethane formula
  • Size: Available in 1 gallon and 32 ounce sizes
  • Dimensions: 2.75 inches x 6.56 inches x 10.5 inches
  • Weight: 7.08 pounds


  • High durability
  • Water resistant
  • Outdoor and indoor use
  • Useable on different surfaces
  • Fast drying
  • Stain resistant
  • Low odor
  • Can be easily recoated
  • Cheap


  • Not Waterproof
  • Might not work best with wooden surfaces
  • Requires maintenance

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Every house built with beautiful masonry craftsmanship might need a Trewex professional as it may be the best option for keeping the grace of your home intact .

3. Thompson’s Water Seal TH.A21711-16 Advanced Natural Wood Protector

Thompson’s Water Seal Advanced Natural Wood Protector is a special product among this list. Operating for 90 years in the global surface sealing market, Thompson’s Water Seal is responsible for protecting America’s most famous decks, including Niagara Falls state park.

This product is chiefly designed for wood and offers maximum protection against UV damage and mildew fungus, providing your wood with its special look and tints.

It applies to wood whether the wood is wet or crisp in one coating. This is what makes it exceedingly functional for its users.

It is effortlessly applicable and removable.

Thompson’s Advanced Natural Wood Protector offers you waterproof coating, a shield against heavy rains and water leakage (if you have any).


  • Formula: Water based formula
  • Size: 1 gallon
  • Dimensions: 7.75 inches x 4 inches x 11.8 inches
  • Weight: 5.89 pounds


  • Easy to apply and remove
  • Anti UV and Mildew fungus
  • Low odor
  • Water-proof
  • Maximum quality
  • Durable
  • Multi-surface Wood sealer
  • Value for money
  • Cheap


  • Available in only one size
  • Maintenance might be required

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4. Rain Guard Water Sealers SP-8002 Wood Sealer Concentrate

The fourth contender for the best outdoor wood sealer is Rain Guard’s SP8002. Rain Guard provides you with 100% eco-friendly and 100% toxic free products. Rain Guard is also doing a fantastic job regarding corporate social responsibility.

Their products not only care for your home but they promise to make sure that they keep their promise of safeguarding the environment.

Rain Guard’s Wood sealer is manufactured for all porous wood surfaces and gives a multi-use to its users and protects the surface against utmost weather conditions such as heavy rains, snow, and ice.

It is made up of the latest UV stabilizing formula to ensure it doesn’t change its color to yellow. This assures its great quality.

This item not only guarantees to protect your surface against efflorescence deposits but also promises to keep the natural look of your wood.


  • Formula: Concentrated formula
  • Size: 1 gallon and 32 ounces
  • Dimensions: 2 inches x 5 inches x 8 inches
  • Weight: 2 pounds


  • Durable and Long lasting
  • Anti-toxic
  • Pet-friendly
  • Uses advance UV stabilizers
  • High quality
  • Easy to apply
  • Eco friendly
  • Guarantees satisfaction
  • Cheap
  • No maintenance required


  • Doesn’t provide UV protection
  • Has to be applied with a spray or roller

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Rain Guard’s Wood Sealer Concentrate might be the best option for people who are looking to safeguard their wood against extreme harsh winter conditions. This product might stand out in that reference.

5. TriCoPolymer VOC Free Non Toxic Lumber-Seal Clear Satin Wood Sealer

TricoPolymer has been serving the market since 1995, producing non-toxic sealants for commercial and industrial use.

TricoPolymer has a quite vast range of products but today’s contender is the VOC Free Non Toxic Lumber Sealant.

The organic compound VOCis a chemical used in different types of products and sealants. This chemical possesses harmful effects for people if exposed to it.

TricoPolymer Lumber Sealant is free of VOC and any other toxic substances hence, making it safer for humans and pets.

This product can be used on any lumber surface, old or new, for cover ups.

This item pledges apex quality and long resilience, which makes it stand out among the market as the zenith of standard.


  • Formula: Clear/free of VOC
  • Size: Available in 1 gallon size
  • Dimensions: 7 inches x 7 inches x 8 inches
  • Weight: 8.5 pounds


  • Prime Standard
  • Resilient
  • Eco-Friendly
  • Rests at applied area 3 times longer
  • Non-toxic
  • VOC free
  • Safe for usage
  • Easy to apply


  • Expensive
  • Available in only one size

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This sealant might be the most toxic free and harsh fumes free on the market available.

6. Waterlox TB 3809 25F Original Marine Sealer QT

Providing their services for more than a Century Waterlox is an epitome of trust and serving. Based in Ohio USA, this company is an industry in itself.

The Waterlox marine sealer blends well with exterior wood of any kind, gives a shield against water damage, and provides an excellent finishing touch when mixed with Waterlox original marine finish.

Made with tung oil, this sealant provides an effective caliber and gives a premium coating to wooden surfaces.

This sealant penetrates the surface and makes it water proof using its oil based solution.


  • Formula: Tung oil extractions
  • Size: 1 Quart
  • Dimensions: 7.5 inches x 4.5 inches x 2.38
  • Weight: 2.24
  • Coverage: 125 square feet per quart


  • Premium quality
  • Water-proof
  • Non-toxic when it is cures
  • Handmade
  • Durable
  • Easily applicable


  • Expensive
  • Provides best results when used with Waterlox Marine Finish

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This is a premium product, best worked in conjunction with Waterlox marine finish, however, this might be an outstanding product for you if you are willing to spend a little more.

Which is the Best Outdoor Wood Sealer? — A Buyers’ Guide

To answer this question, you need to ask yourself some questions, for instance:

  • Which kind of surface are you applying the sealant to?
  • What do you demand and expect out of the sealant?
  • What amount of money are you willing to spend on a sealant for shielding your property?

You also need to keep in mind the different attributes of brands and companies.

All of these factors play a role in deciding which sealant will be the best for you and it’s you who needs to decide which one will be the best for your needs.

There is no hardline rule for deciding which sealant will be the most effective. Every product has its positives and negatives so it will be up to you to carry out a sound analysis.

But to help you make a final decision, we have further categorized our picks according to specific features.

Affordability and Anti-UV Feature

Thompson’s Water Seal TH.A21711-16 Advanced Natural Wood Protector has an upper hand amongst its competitors in this regard. Not only is this option easy to use but it comes with the latest anti UV and mildew technology.

Environment Friendly

Rain Guard Water Sealers SP-8002 Wood Sealer Concentrate vows to offer a wood surface sealant that is free of toxic chemicals and harmful fumes. This product is an excellent choice for people who are conscious of the environment and their health.

Health Conscious

This special consciousness of preserving the health and habitat of Trico Polymer’s users and the five year satisfaction guarantee makes it one of the best choices amongst all our picks.

Our Top Pick

After analyzing all the products in detail and reviewing their specifications, we have come to the highway where we have to take a turn towards the best wood sealant in 2020, by a small margin this title goes to Thompson’s Water Seal TH.A21711-16 Advanced Natural Wood Protector.


Protecting and taking care of things is very important and prudent, however, at times it does get difficult to preserve our beloved things from harm’s way.

To make sure that your outdoor wood furniture remains intact and well preserved there are many solutions, including wood sealants and other techniques.

You just need to make sure that whichever course of action you opt for, it is viable and produces good results in safeguarding your belongings, however, wood sealants are a choice that have become increasingly popular in providing ample protection.

Choose wisely, choose efficiently.