Best Wood Water Sealer

Best Wood Water Sealer — Seal Your Wood the Right Way

Wood is a construction element widely used all across the globe. Natural wood is easily affected by elements such as water. This is why we often feel the need to use wood water sealers.

Not only are there ways to protect wooden surfaces at home, but you can also find products that work in an industrial environment as well. If you don’t know which products work against acid or other chemicals, you’re at the right place.

Read more to find out which product earns the title of the best wood water sealer!

1. Rainguard Waterproofer Advanced Homeowner

The first product displayed in this guide guarantees a long lifetime for your wood. The Rainguard Waterproofer Advance is not only viable for wood surfaces pertaining to furniture, it can be used on a variety of other surfaces too.

This Rainguard Waterproofer is equipped with the ability to protect and maintain patios, pathways, decks, and porches as well. Really, it can be used on just about any type of wood surface.

Even better, it works well on concrete, stonework, and brickwork. The product has a reputation of being impenetrable.

Created with the best concoction to adhere to as many surfaces as possible, Rainguard Waterproofer Advance uses a special infused formula, which makes it the best substance to be used on fences, sidewalks, and unpainted outer walls.

For those of you who may find lacquer odors quite vile or strong, you need not to worry as Rainguard Waterproofer Advance has a very weak odor and is therefore easy to apply via hand or spray (wash your hands afterwards, of course).

Rainguard Waterproofer Advance also presents clear and uncolored coats on surfaces without changing the actual look of it.


  • The material used: Silane Siloxane Blend
  • Product dimensions: 12 inches x 12 inches x 15 inches
  • Color: Clear, colorless
  • Quantity: 5 gallon
  • Weight: 48 pounds
  • Coverage: 300 sq.ft/gallon


  • Guaranteed satisfaction for 10 years
  • Colorless
  • Low odor
  • Applicable on various surfaces
  • Indestructible on surfaces
  • Eco friendly
  • Water based
  • One coat gets the job done


  • Applies best in cold temperatures
  • Item is a little heavy
  • Should not be applied over pre-painted walls

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2. Rainguard Water Sealers SP:1104 Gloss Sealer Ready to Use

The second product is the Rainguard Gloss Water Sealer, which dries off to give a glossy finish. Some of you might want to use lacquers that provide respective surfaces with a lasting sheen. Rainguard Water Gloss Sealer is just the product for you.

These are manufactured to have a water:based formula, more specifically a silicone acrylic water repellant. The Rainguard Water Gloss Sealer provides the user with a formula that is free of toxic ingredients, prevents any stain from sticking to the surface and leaves the surface with a shiny appearance.

Rain Guard’s Glossy Sealer is also equipped with similar technology. Because of that, it’s special formula creates barriers on the surface where it is applied, and hence, prevents staining.

The product guarantees a long and worthy investment of five years. Rainguard Water Sealer is easy to use. It also works effectively on both clear and unclear surfaces, whether painted, stained, or unstained.

Once used, all because of its special made formula, this product ensures that it shows no signs of yellowing. For outdoor usage, the harmful rays of the sun will not be a problem for the product since it is unharmed by UV rays.


  • Color: High glossy
  • Product dimensions: 14.88 inches x 12.08 inches x 12 inches
  • Matter: Liquid
  • Quantity: One 5 gallon pail
  • Weight: 40.9 pounds
  • Coverage: 200 sq.ft/gallon


  • UV resistant
  • Non-toxic
  • Easy to use
  • Glossy finish
  • Non-yellowing
  • Low odor


  • A bit heavy to handle
  • Any overspray should be cleaned
  • Intensely glossy surfaces make scratches prominent

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3. THOMPSON’S WATER SEAL 21802 VOC Wood Protector

Another product to further narrow down your searchin finding the best water sealer is the Thompson’s Water Seal. Where the aforementioned products are viable, Thompson’s Waterseal is also great at preventing harm to your wood.

The Thompson’s Water Seal Wood Protector reaches beyond the surface of the wood to stop the onset of any rotting that’s occurring inside. It prevents the spread of such substances that would spoil different wood surfaces, like mildew for instance.

The Thompson’s Water Seal Protector is classified as containing a VOC, or volatile organic compound. This means that it contains one or more chemicals that are used to build and make certain products that are normally harmless when found in homes but here they are released immediately into the open air.

However, this product still provides a waterproofing ability so wooden surfaces do not display signs of cracking, splitting, or breaking. Furthermore, they contain materials that will absorb UV rays so that it does not result in further harm.

Thompson’s Water Seal Wood Protectors are applicable on stained as well as plain surfaces that are fully painted.


  • Matter: VOC liquid
  • Product dimensions: 4.1 inches x 6.6 inches x 11 inches
  • Quantity: 1.2 gallon
  • Weight: 9.1 pounds


  • UV rays will not harm it
  • Prevents internal problems with wood
  • Can be applied over any heavily painted or stained surface


  • Not as viable for unstained surfaces
  • May be a problem to acquire in VOC restricted areas

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4. Rainguard Water Sealers SP:8004 Wood Sealer Ready to Use

Rainguard Water Sealers indeed are one of the best which is why we have another rockstar product from the brand for you. While offering a guarantee of up to five years, this product proves itself viable to stop wood surfaces from being harmed from natural conditions like rain, ice, and snow.

Rain Guard Water Sealer SP:8004 does not change the look of the surface where it is applied and further helps secure protection for your wood. It prevents the surface from efflorescence, indicating that no substance will gather on the surface after Rainguard’s Water Sealer comes in contact with it.

This product can be applied with a roller or can be sprayed onto the surface. Due to the advancement of technology, this formula of Rain Guard Water Sealer comes with the ability to fight off UV rays that are known to cause surfaces to take on a yellow hue.

Not only is this product safe to use around people and animals, but is also approved under all or most state guidelines.

Rain Guard Water Sealer SP:8004 Wood Sealer can be readily used on outer and inner wooden surfaces.


  • Matter: Water based
  • Color: Invisible
  • Product dimensions: 4 inches x 5 inches x 10 inches
  • Quantity: Available in 1 gallon and 32 ounce options
  • Weight: 2.40 pounds
  • Coverage: 150 sq. ft./gallon


  • Safe to use in any surrounding
  • Applicable on the interior and exterior surfaces
  • UV ray absorbent
  • No weird substance left behind after usage


  • Mostly suited for colder weather
  • Does not give a prime finish

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5.Rainguard Water Sealers PU:2401 Polyurethane HD IsoFree Clear

This water sealer contains polyurethane which means that it will not melt in the presence of heat.

Not everyone is looking for a radiant and shiny finish, which is why Rain Guard’s Polyurethane Water Sealer finishes as matte to give you a bit of variety. This product comes with a formula that has nontoxic and nonflammable properties.

It is of great use to coat over any concrete surface; however, it is a better option for industrial use. With a guarantee, Rain Guard polyurethane water sealer lasts longer and also prevents UV rays from turning surfaces yellow.

They also take into account vile lacquer smells that many people are put off by, hence this product leaves no odors after being applied. Once applied, the coat is unaffected by most common acids or other chemicals.

Surely all these properties may be the perfect fit for some consumers but some might not be fans of this product’s matte finish. Well, you no longer have to worry about that because now Rain Guard’s Polyurethane Water Sealer comes in glossy, high gloss, as well as a matte gloss finish!


  • Matter: Polyurethane Liquid
  • Color: 3 options
  • Quantity: 0.25 gallon
  • Weight: 1.63 pounds
  • Coverage: 75 sq.ft


  • Includes two tins
  • Resistant to acid as well as chemical
  • No odor
  • Finish options
  • Unable to melt in the heat
  • Nonflammable


  • Needs to be tended with the correct equipment
  • High gloss finishes may make scratches appear more readily
  • Mostly suitable for industrial uses

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6. Thompson’s Water Seal 24111Low VOC Water Sealer

Our second product by Thompson’s Water Seal prevents harm externally. So, if you are someone who wants a quick repair for any exterior wooden surface, this would be a good choice.

This product also works well on surfaces like fences, decks, brickwork, and of course, concrete. It helps to create a coat that stops water damage on these surfaces.

Thompson’s Water Seal definitely indicates that its ability to perform as a volatile organic compound is low. However, it is VOC compliant, which means it is safer to use.

All these abilities combined will quickly solve your problems and leave your surfaces looking good as new without any major change in texture.


  • Matter: VOCwater base
  • Product dimensions: 7 inches x 4.5 inches x 12.25 inches
  • Quantity: 1.2 gallon
  • Weight: 9.55 pounds


  • Waterproofs surfaces
  • Helps prevent wood staining
  • Beads the surface
  • Works on stonework and brickwork


  • Does not penetrate surfaces for interior protection
  • VOC is present
  • Not as suitable for industrial use

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Buyer’s Guide: Choose Your Water Sealer

Best Suited for Industrial Needs: Rain Guard’s Polyurethane Sealer

This would be the choice to opt for if you are looking for the lacquer to prevent surfaces being harmed in the presence of chemical and industrial substances. Not only is it not harmful but also resistant to any chemicals and acids.

Best Suited for the Harsh Outdoors: Rainguard SP:8004

This product is handy if you live somewhere where you deal with damp weather conditions like rain, snow, or ice. It’s proved to be resistant to moisture and is safe to use as well (limited harmful chemicals).

Best Suited for Indoor Surfaces: Rainguard Advanced Homeowner

If you are looking to apply water resistant lacquers on the surfaces of your driveways or furniture, this is the best option to go with since it gives you all the properties you might need to keep these surfaces safe without changing the way they look.

A Quick Tip for Using a Water Sealer

One of the most important things to remember when using a water sealer is that you need to make sure the wood is prepared first. This may mean ensuring that the moisture levels are low (though not completely absent) before you apply your water sealer.


We hope that if you’ve come this far you already have your heart set on the best wood water sealer for your needs. In this article you have learned about their specs, pros as well as cons so that you don’t end up making a poor purchase.

These are the best options available on the market these days. Happy shopping!