14 best waterproofing for wood decks

Waterproofing for wood decks is a crucial aspect of deck maintenance and protection, especially in the context of stains, finishes, sealers, paint, wall treatments supplies, and tools for home improvement. Here's what you need to know about waterproofing wood decks:

  1. Purpose: Waterproofing a wood deck is essential to protect it from the damaging effects of moisture, such as rot, decay, mold, and mildew. It also helps prolong the life of the deck and enhances its appearance.

  2. Products: There are various products available for waterproofing wood decks, including stains, finishes, and sealers. Each type offers different levels of protection and aesthetic finishes.

  3. Stains: Deck stains are designed to penetrate the wood's surface, providing color and protection. They come in two main categories: transparent and semi-transparent stains, which allow the wood grain to show through, and solid stains, which offer more extensive coverage and hide the wood's natural grain.

  4. Finishes: Deck finishes, such as varnishes or polyurethane coatings, create a clear, protective layer on the wood's surface. They are often used in combination with stains to enhance the wood's appearance and protect it from UV rays and moisture.

  5. Sealers: Deck sealers are clear or semi-transparent products that are used to seal the wood's surface. They provide excellent moisture protection and are particularly useful for preserving the natural look of the wood.

  6. Application: Proper preparation is crucial before applying any waterproofing product.This includes cleaning the deck, ensuring it's free from dirt, mildew, and previous finishes. Follow the manufacturer's instructions for application, which may involve brushing, rolling, or spraying the product onto the wood.

  7. Maintenance: Regular maintenance is essential to keep a waterproofed deck in good condition. Depending on the product used, reapplication may be necessary every few years. Inspect the deck annually for signs of wear and tear.

  8. UV Protection: UV radiation from the sun can degrade wood and finishes over time. Some waterproofing products contain UV inhibitors to protect the wood and maintain the finish's integrity.

  9. Color Options: When choosing a waterproofing product, consider the color options available. Many stains and finishes come in a variety of colors to match your deck's aesthetic.

  10. Environmentally Friendly Options: Some eco-friendly and water-based waterproofing products are available for those who want to minimize the environmental impact of their deck maintenance.

  11. Tools and Supplies: To apply waterproofing products, you may need tools such as brushes, rollers, paint sprayers, and sandpaper for preparation. Ensure you have the necessary supplies to properly complete the project.

  12. Safety Precautions: When working with waterproofing products, use appropriate safety gear, such as gloves, goggles, and a respirator if needed. Work in a well-ventilated area and follow safety guidelines provided by the product manufacturer.

In summary, waterproofing wood decks is essential to protect them from moisture-related damage and extend their lifespan. Various products, including stains, finishes, and sealers, are available to suit different needs and preferences. Proper preparation, application, and maintenance are key to ensuring the longevity and beauty of your deck.

Below you can find our editor's choice of the best waterproofing for wood decks on the market
  

THOMPSONS WATERSEAL TH.043841-16 Solid Waterproofing Stain, Acorn Brown

Thompson's Water Seal

Based on 384 reviews Check latest price

Product description

Provides complete outdoor wood protection. This solid exterior wood stain adds the most color to the surface and shows the least wood grain. Available in several beautiful deck stain colors.

  • Prevents Water Damage
  • Advanced Polymers Provide Fade Resistant Color
  • Coating Resists Mildew and UV Damage
  • Applies to Freshly Cleaned Damp or Dry Wood
  • Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood

User questions & answers

Question: Can this be applied to damp wood? How would it be on raised garden beds
Answer: I wouldn't recommend it. Even applying to untreated bare wood it started peeling and flaking after less than one year. Damp wood would certainly lead to bubbling before long.
Question: Is this solid, or semi-transparent? Title says solid. But description and product image show semi-transparent
Answer: Solid, worked nice but had to put two coats to really cover good.
Question: So is this 1gallon or 16 gallons? I’ve seen a similar question but I wanna be sure
Answer: One (1) gal. 1-gallon.
Question: In the description, it says 16 gallon. What size is it
Answer: I got 16 gallons! It took 3 UPS guys to deliver it to me. Cheaper than drinking water!

Product features

The Thompson's Company has earned a well-deserved reputation as identifying industry trends and emerging technologies.

In the early 1920’s, polymer chemist Edward Addis Thompson developed a formula that protected buildings from exterior water damage. His discovery became known as Thompson's WaterSeal Clear Multi-Surface Waterproofer and initially was used by architectural and construction firms for concrete applications.

THOMPSONS WATERSEAL TH.042851-16 Semi-Transparent Waterproofing Stain, Woodland Cedar

Thompson's Water Seal

Based on 514 reviews Check latest price

Product description

Thompson's WaterSeal Waterproofing Stain provides complete outdoor wood protection. It waterproofs long after the initial water beading is gone. Use on decks and fences, outdoor furniture and exterior wood. Shows medium wood grain and medium color. 1-coat protects 4 years on decks or 6 years on fences and siding. Applies to freshly cleaned damp or dry wood. Prevents water damage. Advanced polymers provide fade resistant color. Coating resists mildew and UV damage.

  • Prevents Water Damage
  • Advanced Polymers Provide Fade Resistant Color
  • Coating Resists Mildew and UV Damage
  • Applies to Freshly Cleaned Damp or Dry Wood
  • Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood

User questions & answers

Question: The listing says semi-transparent, but the picture says transparent, which version is this
Answer: Semi
Question: Is this a gallon container of the product
Answer: Yes this is a one gallon of Thompson water seal
Question: what clear seal do you recommend to use on 12year old pressure treated planks
Answer: I've used Thompson's water-based semi-transparent stain/sealer 3 times now for my 15 year-old pressure-treated deck and it has always done a great job of covering and protecting the wood. It doesn't really last the 4 years they claim, but still very good. They also make an oil-based clear sealer and I use that on my cedar pergola, also very good stuff but it's hard to work with because it doesn't cleanup with water. As an alternative to the oil-base they have an all-purpose water-based clear sealer for wood and masonry. I would use that on my pergola if it was made of pressure treated wood, but with cedar I really want a penetrating oil. So for your pressure treated deck, I would recommend the water-based clear sealer. Given how well the semi-transparent stain has worked for me, I would expect good results with the clear as well. You will certainly want to clean the wood first if you expect to brighten the gray appearance of aged wood. I spray oxygen bleach on the wood first and then scrub with a stiff brush and rinse before sealing.
Question: Would this product work well on untreated Adirondack furniture
Answer: Yes, I think it would be suitable. I have only used it on my deck however. Good protection in a wet climate. Rub it down well after it dries to keep the color from getting on clothes though if you're using a color stain.

Product features

The Thompson's Company has earned a well-deserved reputation as identifying industry trends and emerging technologies.

In the early 1920’s, polymer chemist Edward Addis Thompson developed a formula that protected buildings from exterior water damage. His discovery became known as Thompson's WaterSeal Clear Multi-Surface Waterproofer and initially was used by architectural and construction firms for concrete applications.

THOMPSONS WATERSEAL TH.041841-16 Transparent Waterproofing Stain, Acorn Brown

Thompson's Water Seal

Based on 847 reviews Check latest price

Product description

Thompson's Water Seal waterproofing stain - transparent provides complete outdoor wood protection. It waterproofs long after the initial water beading is gone.

  • Prevents Water Damage
  • Advanced Polymers Provide Fade Resistant Color
  • Coating Resists Mildew and UV Damage
  • Applies to Freshly Cleaned Damp or Dry Wood
  • Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood

User questions & answers

Question: Can this product be applied with a pump sprayer
Answer: I used a pump sprayer with no problems.
Question: What size is this product
Answer: Mine came in a Gallon can
Question: Can this be applied by roller please and thanks
Answer: Yes, I applied mine with a roller.
Question: when should i repeate? 1 year 2year
Answer: The first application was to a rather long ignored deck, say 5 or so years. I am about to redo it this spring, less than two years later. No idea of how long it will hold on what had been a very thirsty deck, but I hope two to three years.

Product features

The Thompson's Company has earned a well-deserved reputation as identifying industry trends and emerging technologies.

In the early 1920’s, polymer chemist Edward Addis Thompson developed a formula that protected buildings from exterior water damage. His discovery became known as Thompson's WaterSeal Clear Multi-Surface Waterproofer and initially was used by architectural and construction firms for concrete applications.

SEAL-ONCE MARINE - 1 Gallon Penetrating Wood Sealer, Waterproofer & Stain. Water-Based, Ultra-low VOC formula for high-moisture areas to protect wood docks, decks, piers & retaining walls.

SEAL-ONCE

Based on 327 reviews Check latest price
  • Specially Formulated to be Applied Around & Over Fresh or Salt Water
  • Water-based, Low VOC, Non-toxic; Safe for People, Pets, Plants & Marine Life
  • Superior Nanotechnology Penetrates Deep, Coating Wood Fibers at the Cellular Level
  • Performs like an Oil-Based Sealer Without any Harmful Chemicals or Side Effects
  • Creates a Flexible, Breathable Barrier that Enhances, Stabilizes & Protects Wood

User questions & answers

Question: How do appy on a cloudy day in the tropics ? A cloudy day here means.............it's going to rain . How critical is this
Answer: how long does it take to dry in 70 degree dry sunny weather
Question: Can you use a regular wood stain after applying
Answer: Yes the clear MARINE can be painted or stained. Or you can purchase a tint for SEAL-ONCE and use the MARINE as a sealer and stain. MARINE Features: • Clear formula can be painted or stained after treatment • Tinted formula provides additional UV protection • Available in 11 semi-transparent tint colors • Eco-friendly, Non-toxic; will not harm pets, plants, people or marine life • Ultra-low VOC, Water based • Can be applied around or over fresh or salt water • Flexible, breathable barrier, Stabilizes & protects wood • Prevents warping, cupping, wood rot & decay • Resistant to salt water spray • Prevents mold, mildew & algae growth • Soap and water cleanup
Question: I want to use this on a 6x6 wood beam at the opening to my walk-in shower (floor to ceiling). No direct shower spray. Will this seal it
Answer: Yes you may use it for this specific application. As suggested in a comment down bellow, you would want to make sure that it is fully cured before using the shower. Typically it would take 48 hours to cure but it may take longer depending on the environment.
Question: Can it be used on green treated lumber
Answer: Pressure treated lumber has to be dry.

Product features

The Science of SEAL-ONCE and Innovative Use of Nanotechnology in Wood Finishes & Stains

Unlike many top-coat sealers sold today that trap moisture below the surface, MARINE creates a flexible, breathable barrier which allows water vapor to escape. This key feature helps prevent damage to wood caused by water intrusion, such as: wood rot, decay, mold & mildew growth, cracking & splitting. Typical wood sealers form a barrier on the surface of the wood, trapping moisture below the surface. As the water evaporates, it causes the surface coating and the substrate to crack & peel, leaving a broken surface that requires continued maintenance and is susceptible to additional damage. SEAL-ONCE uses cutting-edge, nano-particle technology to allow wood to breath and help prevent water vapor damage by protecting wood from the inside out.

Water-based Product that Will Not Harm People, Pets, Plants, Livestock or Marine Life.

SEAL-ONCE products are ultra-low VOC, low odor, non-toxic, non-flammable and non-ozone depleting. They are safer for the environment, easier to apply than solvent based wood finishes and clean up with soap & water. They do not contain nitrates, phosphorous compounds or heavy metals like many Oil-based sealers & stains on the market today.

Quick & Easy Application

Apply first coat with a synthetic brush; pump-up garden sprayer; air-assisted; and/or airless sprayer. Use 15-17 tip and medium to coarse spray pattern. When spraying, always back brush for best results. Second coat can be applied once first coat has penetrated, but is still damp. Second coat must be applied within one hour of applying first coat. For best results, apply in the shade and out of direct sunlight. Clean-up brushes or sprayer with warm soapy water.

Choose from 11 Wood Stain Tints

MARINE can be tinted for use as wood stain in any of the 11 color tints available: Clear, Light Brown, Natural, Brown, Mahogany, Redwood, Bronze Cedar, Cedar, Black, Battleship Gray, Shale Gray & Cape Cod Gray. The tints are sold separately and when mixed with Clear, the tinted formula provides additional UV protection from harmful sun rays.

Surface Preparation & Coverage

Approximate coverage: 250-350 sq. ft./gallon per coat. Actual coverage will vary due to the porosity of the surface. All surfaces should be cleaned with SEAL-ONCE All Wood Cleaner before sealing for best penetration and performance. Remove all old coatings, dust, debris and loose material. Remove oil, grease, algae, grime, mill glaze and mold and mildew stains with appropriate cleaners.

KILZ L832211 Exterior Waterproofing Wood Stain, Semi-Transparent, Redwood, 1-Gallon, 1 Gallon, 4 l

Based on 406 reviews Check latest price

Product description

A good exterior wood stain offers long-lasting protection, waterproofing and a mildew-resistant finish that maintains the integrity and beauty of wood in variable outdoor conditions Our 100% Acrylic formula protects wood from rain, snow and sun damage. This stain is warrantied up to 3 years on decks and up to 5 years on fences and siding (see label for details). Use on properly prepared new to moderately weathered and unsealed exterior wood surfaces (0-10 years exposure) including decks, shingles, wood patio furniture, railings, siding, shakes and fences. This semi-transparent stain provides a mildew-resistant finish and UV protection. Coverage of up to 250 square feet For the first coat and up to 500 square feet For the second coat. This is a 1-Gallon can of KILZ exterior waterproofing, semi-transparent wood stain in Redwood. For failing coatings or to remove loose wood fibers, use a product such as KILZ Wood Stain & Finish Stripper followed by a product such as KILZ Wood Cleaner & Brightener to neutralize the wood. For best results allow the area to dry at least 24 hours before coating. Lightly sand to remove remaining wood fibers/fuzz. Apply with a pad applicator, nylon/polyester brush, or high quality pump sprayer. KILZ has been making premium primers and paints for 40 years. KILZ was named Paint Brand of the Year in 2015 in the Harris Poll EquiTrend  Rankings.

  • A good exterior wood stain offers long-lasting protection, waterproofing and a mildew-resistant finish that maintains the integrity and beauty of wood in variable outdoor conditions
  • Our 100% Acrylic formula protects wood from rain, snow and sun damage. This stain is warrantied up to 3 years on decks and up to 5 years on fences and siding (see label for details).
  • Use on properly prepared new to moderately weathered and unsealed exterior wood surfaces (0-10 years exposure) including decks, shingles, wood patio furniture, railings, siding, shakes and fences.
  • This semi-transparent stain provides a mildew-resistant finish and UV protection. Coverage of up to 250 square feet For the first coat and up to 500 square feet For the second coat.
  • This is a 1-Gallon can of KILZ exterior waterproofing, semi-transparent wood stain in Redwood.
  • For failing coatings or to remove loose wood fibers, use a product such as KILZ Wood Stain & Finish Stripper followed by a product such as KILZ Wood Cleaner & Brightener to neutralize the wood.
  • For best results allow the area to dry at least 24 hours before coating. Lightly sand to remove remaining wood fibers/fuzz. Apply with a pad applicator, nylon/polyester brush, or high quality pump sprayer.
  • KILZ has been making premium primers and paints for 40 years. KILZ was named Paint Brand of the Year in 2015 in the Harris Poll EquiTrend  Rankings.

User questions & answers

Question: What type of solvent would I need to clean an automated sprayer out after using this product (warm water/thinner/solvent/etc
Answer: It has a 1080 camera on it. No reason to attach a go pro.
Question: Do they sell 5gal buckets
Answer: The video quality is good
Question: Could this be used to stain plywood subflooring indoors
Answer: 7-8 minutes after full charged per battery.
Question: Can I use this over pre dyed wood (alcohol stain
Answer: Just bought this drone. Absolutely NOT 8 min fly time. After calibration, gps sync, and using the camera to take pics, let alone video.. best fly time was 3.5 minutes.. was same on both batteries. Maybe if you take off and just let it hover with no maneuvers it may be longer. Going to buy another set and see if these were just old batteries. Good luck

Product features

Durable, Beautiful & Long Lasting

KILZ Stain provides durable, waterproof protection and a mildew-resistant finish that maintains the integrity and beauty of wood in variable outdoor conditions.

One gallon covers up to 250 sq. ft. for the first coat and up to 500 sq. ft. for the second coat.

Ideal for Decks, Siding, Fencing & More

Use on properly prepared new to moderately weathered and unsealed exterior wood surfaces (0-10 years exposure) including decks, shingles, wood patio furniture, railings, siding and fences.

Brush or spray on. Can also be applied with a high-quality paint pad.

Protects from Rain, Snow & Sun Damage

Our Acrylic formula protects wood from weather and UV damage. This stain is warrantied up to 3 years on decks and up to 5 years on fences and siding.

DEFY Crystal Clear Composite Deck Waterproofing Sealer, 1 Gallon

DEFY

Based on 223 reviews Check latest price
  • WATER-BASED, CLEAR COMPOSITE DECK SEALER – This water based, clear wood and deck sealer protects composite wood from the harmful effects of the sun, while adding little to no change to the natural look of your composite deck.
  • 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.
  • EXTREMELY DURABLE, HIGH QUALITY RESINS – DEFY Composite Deck Sealer is made with the highest quality resins available that have better resistance to fading and darkening. The result is a quality sealer that typically lasts a season or two longer than competitive products.
  • QUALITY THAT LASTS – DEFY Extreme Composite Deck Sealer is a premium-grade, clear deck sealer that is built to last. Keep your weathered composite deck, or fence looking great for longer by using DEFY.
  • EASY TO MAINTAIN – When it’s time to do a maintenance coat, there’s no need to strip the surface. Make sure the surface is clean, then apply a single maintenance coat of DEFY Composite Waterproofing Sealer.

User questions & answers

Question: What is the preferred application method according to the label
Answer: Apply to a clean, dry composite deck using a manual pump sprayer. Spray the sealer in an even , ample amount to soak in well. Cover end pieces and edges of boards thoroughly as well. Use a squeegee to get even coverage if necessary. Allow to dry thoroughly, 24 to 48 hours if needed. It will dry clear unless there is a deep puddle left standing upon application. (Small puddles will soak in and dry clear. Deep peddles may leave a slightly milky look after drying.) If you have no mold in your deck before you use this, this product will keep mold out of your composite deck for about three years.
Question: Is this product water based
Answer: I haven't put it down yet. I'm not sure if it's water based or not. I'm ordering a second gallon before I start as I won't have enough to finish. I will post what I find once I've had an opportunity to use it.
Question: I have eon decking which can't have any petroleum based products. what exactly is in this product and will it harm my eon decking
Answer: I don't know about your decking product, but we used this cleaner on our "TREX" deck, and it worked great. We power washed the deck before applying the cleaner, and it dried looking practically brand new.
Question: will this work on Trex decking
Answer: This works very well on Trex decking.

Product features

About SaverSystems

At SaverSystems, we understand the frustration people feel when they see what they've built deteriorate from the elements. Property is one investment you can bank on, but if it's made with concrete, masonry, or wood it needs to be protected. SaverSystems employs state of the art technology to help protect and save what you build.

SaverSystems has manufactured premium quality, water repellents and protective coatings for over 30 years. We make coatings for a variety of surfaces including wood, concrete, masonry. In addition to the DEFY brand, SaverSystems also manufactures ChimneyRx, MasonrySaver, & ChimneySaver branded products.

All of our products are manufactured in our production facilities located in Richmond, Indiana. Every product is produced under strict quality standards and formulated with the highest quality raw materials available. Our innovative solutions and coatings have stood the test of time, and are trusted by industry professionals and homeowners alike.

Olympic Stain Maximum Deck Stain, Clear, 1-Gallon

PPG

Based on 584 reviews Check latest price

Product description

Olympic maximum Clear waterproofing sealant is olympic station's best sealant. In fact, it has been rated the #1 Clear sealant for three years in a row by a leading consumer magazine. Why does olympic maximum rate so highly well, it delivers enhanced waterproofing and sunblock UV defense to strengthen, protect, and condition wood fibers, ensuring the wood's natural beauty lasts. Olympic maximum with weather-ready application is also specifically formulated to allow you to stain when you want, not when the weather dictates all while getting the same excellent results. Weather-ready application provides four great benefits: you can clean and stain your wood on the same day - even after rain.The stain is rain-ready after just 8 hours.the stain can be applied when air and surface temperatures are as low as 35 Degrees Fahrenheit.If the surface is too hot to touch, lightly mist the surface before application of the stain. Olympic - America's most trusted brand since 1938. Olympic - exterior wood stain for decks & more.

  • Enhanced waterproofing protection to help make sure your wood is protected from cracking due to water

User questions & answers

Question: Title says 3 gl, options offers 5 gl. i click on 5 gl to the order but the order form shows 3 gl. so am i getting the 3 or 5 gl
Answer: I have the same problem. Did you ever find a replacement strainer that is easy to get out through the rack?
Question: Can this product be used in a paint sprayer
Answer: Outer diameter is 4.5", inner diameter 3". It fits my kitchen sink perfectly.
Question: Where can I get the clear in 5 gallon buckets? I love my new fence and don't want to apply any stain color
Answer: Yes, it works quite well for me. I have a double sink, so I bought two. I keep one on the garbage disposal side at all times to prevent silverware (etc) from falling in. This works very well in my kitchen.
Question: I am looking for "olympic natural look protector plus sealant ", for my red wood deck. is this the same one
Answer: There are two different models you must choose from. One is only a strainer, while the other is both a strainer and a stopper. Just pick the one that reads 'strainer stopper' and you'll be fine!

Product features

Stain + Sealant in One

Stain + Sealant in One protects and beautifies in one step.

Weather-Ready Application

Allows greater opportunities for staining when it may rain or when the weather may be too hot or cold.

Enhanced waterproofing protection

Helps make sure your wood is protected from cracking due to water.

Advanced SunBlock UV

Helps protects your wood from dangerous UV rays that can wear down the coating.

How much stain do you need to buy?

One gallon of wood stain covers approximately 250-350 square feed, which is enough for a small to medium deck. It should also cover both sides of a 25 foot long fence or a couple pieces of furniture.

Two Gallons

Two gallons of wood stain cover approximately 600 square feed, which should be more than enough for the standard deck project or a 50 foot long fence.

Three or more Gallons

Three or more gallons of wood stain will most likely only be needed on large projects, as they should cover over 850 square feed.

Note: Solid Color Stain requires two coats. You should effectively double your gallons purchased when using a solid.

How To Stain Your Wood Deck In 3 Easy Steps

Sweep debris from deck and then use a product such as Olympic Premium Deck Cleaner to penetrate the wood and lift dirt to the surface to be cleaned, as well as clean stains caused by mildew, dirt, algae and mold. Allow surface to dry.

STEP 2

Tape off any surfaces you don’t want stained. Also, avoid staining in direct sunlight or on hot surfaces because the stain will dry too fast to penetrate properly.

STEP 3

For clear, toner and semi-transparent stains, apply a thin coat with a high-quality brush, roller, paint pad, or spray. For solid stains, apply two thin coats with a brush, roller, or paint pad. To avoid lap marks, apply to a few boards at a time, keeping a wet edge.

For best results, backbrush into the surface to work finish into the wood and ensure the coating is even. Make sure to treat all areas of the wood, including joints, edges and ends.

You’re going to want to follow the directions on your stain container to determine if anything needs done after your final application.

Olympic Wood Stains: A reputation as durable as our products

Olympic Wood Stains has provided exceptional protection and durability for all wood types, applications and budgets since 1938.

Nothing protects and beautifies your wood like Olympic Exterior Stain. Trust the natural beauty of your wood to Olympic Stains.

Olympic Paints and Stains guarantees satisfaction with the application and performance properties of this product when applied to a properly prepared surface in accordance with label directions. This guarantee is limited to your choice of product replacement or refund of the purchase price. See product label for more details.

Eco Advance Wood Siloxane Waterproofer Concentrate - Makes 1 Gallon

Eco Advance

Based on 206 reviews Check latest price

Product description

16 ounce concentrate makes 1 gallon of commercial-grade water Repellent when mixed with clean water.  this easy-to-use spray-on formula provides long-lasting protection for your exterior wood projects including:  decking, wood fence, gondolas/pergolas, plywood, wood siding, wood shingles, etc. This product differs from most water repellents because of its vapor transmission abilities which allow for long-term product and substrate performance.  this allows substrates to still cure and prevents moisture from being trapped which can lead to a rapid degradation of the substrate. .

  • Liquid concentrate formula makes 1 gallon of commercial grade water proofer
  • Ideal for use on wood decking, wood fences, plywood, wood shingles, wood siding and much more
  • Protects against water damage, oil, stains, mold, mildew, de-icing salts, and pool/spa chemicals
  • Water-based, non-toxic, non-flammable formula does not harm landscape plantings
  • Vapor permeable (breathable) water proofer can be used on new wood

User questions & answers

Question: I already put linseed oil on my pine joists (in my shower) over a year ago now. Could I now put this product on for a better waterproof seal
Answer: I don't see why not. It has been a year. If it was only a few months, I would not use it.
Question: Can this be used on outdoor cedar furniture to seal and maintain the woods natural color
Answer: I have not tried cedar specifically but so far the all the other types of wood have kept their original color. There was a little bit of a whitish film right after application but that went away after it soaked in.
Question: If i use this on a trellis made of new pine 2x4s, how long can i reasonably expect it to last? when will i want to to reapply? no ground contact
Answer: If you apply the product generously and then come back before it dries and do another light application you should get a minimum of 3 years and most likely 5 years.
Question: I have made a wooden sink cover for my kitchen. Would this product keep the wood from warping/taking on water damage
Answer: We used this product in the back of a box truck. The floor has been wet many times over the last year and the wood has held up great. We have no warping or damage. Good luck.

THOMPSONS WATERSEAL 21802 VOC Wood Protector, 1.2-Gallon

Thompson's Water Seal

Based on 464 reviews Check latest price

Product description

1. 2 gallon, VOC clear wood protector, VOC Compliant, bonus container, for members in VOC restricted areas.

  • Item Weight: 9.65 lb
  • Country of Origin: China
  • Brand name: Thompson's Water Seal
  • Item Dimensions: 4.1"L x 6.6"W x 11.0"H

User questions & answers

Question: Could this be used on an exterior door to help with swelling from humidity? If so how to apply
Answer: I doubt it would help much. It stops water penetration but not humidity problems.
Question: Can the protector be applied on damp wood
Answer: I think not.
Question: Will this work on outdoor mahogany floor
Answer: Yes will protect it
Question: Hello, Do you have to re-apply every year
Answer: Probably. To tell, splash some water on the finish. If the water forms bubbles, the surface is OK for another season. However, after a year the surface may look dirty, and so you may want to clean it and re-seal it. Again, after you clean the surface, splash some water on it and see whether the previous seal still holds.

Thompson's Water Seal TH.012551-18 Waterproofing Stain - Aerosol, Woodland Cedar - 11.75 ounce

Based on 311 reviews Check latest price

Product description

Quick and convenient waterproofing spray that provides complete outdoor wood protection. This spray stain offers beautiful fade resistant color and is ideal for small outdoor projects and touch ups.

  • Prevents Water Damage
  • Advanced Polymers Provide Fade Resistant Color
  • Coating Resists Mildew and UV Damage
  • Applies to Freshly Cleaned Damp or Dry Wood
  • Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood

User questions & answers

Question: Can I paint over this sealer
Answer: It’s very oily. I would say no
Question: Is it safe to use where food will be grown
Answer: Obviously not meant to be applied to soil. I assume you mean to wood nearby ? Probably OK once dried. Don't apply where heavy rain is imminent and runoff would be to food growing soil.
Question: does this go on as a clear coat or does it stain the wood a different colo?r
Answer: It does stain the wood a different color
Question: How much area will one spray can cover
Answer: I did one side of a wrought iron man gate with wood slats. There was only 1/4 can left. Just FYI. The color is not attractive and it doesn’t apply evenly.

Product features

The Thompson's Company has earned a well-deserved reputation as identifying industry trends and emerging technologies.

In the early 1920’s, polymer chemist Edward Addis Thompson developed a formula that protected buildings from exterior water damage. His discovery became known as Thompson's WaterSeal Clear Multi-Surface Waterproofer and initially was used by architectural and construction firms for concrete applications.

Thompsons TH.024104-14 Clear Multi-Surface Waterproofer, Quart

Thompsons

Based on 64 reviews Check latest price

Product description

Proven to waterproof wood, concrete and brick. Use as a wood sealer, brick sealer, or for concrete waterproofing.

From the Manufacturer

For multi-surface waterproofing that protects wood, brick and concrete and allows your wood to gray naturally.

  • Prevents Water Damage
  • Beads and Waterproofs
  • Allows Wood to Gray Naturally
  • Use When Mildew and Biological Factors are not a Problem
  • For use on Terra Cotta Planters, Birdhouses, Mailbox Posts and Other Small Exterior Surfaces
  • Will effectively seal any porous material against damage by water, including concrete, brick, stone, plaster, wood, canvas, and asbestos
  • When used as an additive to, or under-seal for solvent thinned paints, it shields paint against weather.

User questions & answers

Question: Is this high gloss
Answer: Thompson's water seal is exactly what the title says. It seals your wood and protects it from the elements. It's not paint. It's not varnish or polyurethane. It does NOT leave a gloss. Notice: Do not use in very cold or wet weather.
Question: Has anyone (consumers) had good luck using on wood
Answer: Probably anyone who has ever used it on wood.
Question: Can i use this over an epoxy garage floor
Answer: This I do not know. Check the label or check with Thompsons.
Question: Can I wsterproof and UV protect a cotton flag with this
Answer: I would not recommend this product for anything. Stay away from it.

Product features

The Thompson's Company has earned a well-deserved reputation as identifying industry trends and emerging technologies.

In the early 1920’s, polymer chemist Edward Addis Thompson developed a formula that protected buildings from exterior water damage. His discovery became known as Thompson's WaterSeal Clear Multi-Surface Waterproofer and initially was used by architectural and construction firms for concrete applications.

Olympic Stain Smartguard Concentrated Multi-Surface Sealant, Clear, 15oz

Olympic Stain

Based on 174 reviews Check latest price

Product description

Olympic smart guard is the smarter way to seal. The Clear concentrate dries in only 1 hour allowing you to prep, clean and enjoy your deck in less than a day. Easy, fast, strong. Olympic Smart Guard Waterproofing Sealer penetrates the substrate to provide advanced durability and protection. Olympic Smart Guard clear deck sealant can be applied to wood decking, concrete patios, masonry, and even composite decks after rain or cleaning and dries in 1 hour. It is formulated to be extremely fast and easy to apply, especially from a pump sprayer, but applies easily with brush or roller as well. Smart Guard is a completely different sealant technology that penetrates wood to protect it from water damage at the surface and below. SmartGuard is highly water-repellent, but allows wood to breathe. Less water trapped in the wood means less water damage. When it comes to your outdoor space, Smart Guard is a versatile and convenient sealing solution. It seals wood, concrete, masonry and weathered composite, and its super-concentrated formula covers up to 500 square feet. One small, easy-to-handle, easy-to-pour pouch covers as much as two gallon cans. Easy Three-Step Spray Application: Simply add 2 gallons of water into your sprayer Pour in entire pouch of Olympic SmartGuard Pump and spray. Apply liberally See product label for full prep, application and disposal instructions.

  • Stain Your Deck Quickly And Easily - Olympic Smart guard is a patent-pending deck stain product that allows you to simply spray on the sealant eliminating the need for back-brushing your deck.
  • Simple Stain Process - To apply Olympic SmartGuard Deck Sealant simply pour the pouch into a deck sprayer, add 2 gallons of water, and then spray over your deck - it works on traditional wood decks, concrete, and even composite decking!
  • Quick Dry - Dries in 1 hour so you can entertain or spend time outdoors with less hassle and less disruption. Apply this deck sealant quickly and get back to enjoying your day.
  • Use Even After Rain - Can be applied after cleaning or rain ensuring you get to have fun on your deck as quick as possible
  • Durable - Strong durability and waterproofing protection makes Olympic Smart Guard the smart choice for any homeowner who wants to seal their wood or composite deck quickly and still enjoy the outdoors
  • Multi-Surface Use - While many deck sealants only work on wood, Olympic Smart Guard works as a sealant on Wood Decks, Concrete Patios, Masonry, and even weathered Composite Decks
  • A Trusted Name In Deck Stain Technology - The Olympic brand has been trusted to provide quality results since 1938. Its history of excellence and expertise has made Olympic Stains a category leader with a reputation for delivering innovation and durability at an affordable price. Gorgeous results are always guaranteed with Olympic Stains. With a full range of exterior stains, resurfaces and wood cleaners, we have the products you need to complete your next wood staining project right.

User questions & answers

Question: Does it contain teflon
Answer: The product is great and very stable. It is possible to “under mount“ this product. Sink will have to be mounted to a “subframe support” conforming to the entire perimeter of the bowl. The sink can be attached to a 3/4 - 1” frame using the supplied mounting clips. Anything thicker will be questionable. Allow for 1/8” (sink-lip) space between the subframe and the bottom surface of your counter material. An ample application of silicone sealant (Clear) between sink and the counter top will do the job.
Question: Can this be used on painted deck
Answer: Approximately 7 1/2” on my sink.
Question: Can it be brushed on
Answer: The roll up dish rack is included in the package. If not included, pls email to us through [email protected] with your order ID, we will make this correct.
Question: May wood surface be painted with finish after being treated with this sealant
Answer: For proper fit, we recommend taking the exterior dimension of the sink(left to right) and adding at least 3" for access to install hardware. Actually, can be smaller a little than we suggest.

Product features

Clean, Seal, and Enjoy All in One Day!

Olympic SmartGuard multi-surface waterproofer is a concentrated clear sealer formulated for easy application and fast dry. Olympic SmartGuard Waterproofing Sealer penetrates the substrate to provide advanced durability and protection. It can be applied after rain or cleaning and dries in 1 hour. It is formulated to be extremely fast and easy to apply, especially from a pump sprayer, but applies easily with brush or roller as well.

Simple Spray-On Application

Simply add 2 gallons of water into your sprayer. Pour in entire pouch of Olympic SmartGuard wood and composite deck sealant, pump and spray. Apply liberally.

Clean, Seal and Enjoy in one day!

When it comes to sealing your deck, Olympic SmartGuard can save you time. It can be applied to damp wood, even after cleaning or rain. Dries in 1 hour, so your surface is back in use 1 hour after application

Highly Water Repellent

SmartGuard is a completely different sealant technology that penetrates wood to protect it from water damage at the surface and below. SmartGuard is highly water-repellent, but allows wood to breathe. Less water trapped in the wood means less water damage.

Clean your Deck

Use Olympic Premium Deck Brightener and Wash to clean your deck, removing mold and mildew stains. This will also help restore weathered wood. Be sure to scrub your deck thoroughly to ensure the cleanest possible surface.

Mix in a Pump Sprayer

While you can apply SmartGuard in a traditional way, the formula is particularly convenient when used with a pump sprayer. Mix it into your sprayer with 2 gallons of water.

Apply to your Deck

Spray the mix onto your deck! Apply as much as you see fit, as you want to guarantee you're covering every inch of your deck. You can also use a brush to brush SmartGuard on to harder to reach surfaces, like a railing.

Let Dry and Enjoy

Let the surface dry for 1 hour and your newly-stained deck is complete!

Seals and Stains Wood

When it comes to your outdoor space, SmartGuard is a versatile and convenient sealing solution.

Protects Concrete

It seals wood, concrete, masonry and weathered composite, and its super-concentrated formula covers up to 500 square feet.

Keeps Masonry Safe

One small, easy-to-handle, easy-to-pour pouch covers as much as two gallon cans.

Yes, Even Composite!

Easily stain or seal your surface of choice with Olympic SmartGuard.

About Olympic Stains

A Reputation as Durable as Our Products

The Olympic brand has been trusted to provide quality results since 1938. Its history of excellence and expertise has made Olympic Stains a category leader with a reputation for delivering innovation and durability at an affordable price. Gorgeous results are always guaranteed with Olympic Stains. With a full range of exterior stains, resurfacers and wood cleaners, we have the products you need to complete your next wood staining project right.

At Olympic Stains, we are constantly innovating new ways to help you stain your next project.

Rainguard International SP-8006 Ready to Use 16 oz Spray Bottle Premium Wood Sealer, Water Repellent Protection for Wood Surfaces, Clear Invisible

Rainguard

Based on 24 reviews Check latest price

Product description

Rain Guard Water Sealers premium wood sealer is specifically formulated to work on all wood surfaces. A silane siloxane penetrating water repellent sealer can be used on vertical and horizontal. What makes wood sealer different from the rest is our proprietary ingredient called micro-lok. This additive ensures a long lasting mechanical bond and creates a hydrophobic barrier that is not affected by weathering, salt, dirt, freezing temperatures, UV light and wind-driven rain, among many other damaging elements. Easy clean up. Simply use soap and water directly after application is completed. Available in Ready to Use and cost effective Concentrate formulations. Other Rainguard specialty formulated products to protect these surfaces: Brick, Pavers, Paint, Stucco, Stone, Wood, Concrete

  • Prevents water damage and salt damage.
  • Does not alter surface appearance - leaves no surface film, no sheen and will not yellow.
  • Specifically formulated project sealers include these surfaces; Brick, Pavers, Paint, Stucco, Wood, Concrete
  • Comes in Ready to Use and cost effective Concentrate formulas.
  • 100% satisfaction

Product features

Rainguard Water Sealers Wood Sealer

Protect, restore, and extend the life of your project with Rainguard Water Sealers Wood Sealer. Formulated to penetrate deep into the surface, Wood Sealer is a water-based silane/siloxane water repellent. It can be used on unpainted, interior or exterior, vertical or horizontal surfaces and dries clear with an invisible natural finish.

Surface Preparation:

Remove dust, dirt, and debris from the surface. Gently remove any stains with soap and water or use Rainguard Restore-N-Prep. Once the surface is clean, make sure to let it dry until it is “bone dry”. This will allow the sealer to absorb deep into the surface for maximum protection. Think of your surface as a sponge. A wet sponge will not be able to absorb as much as a dry sponge.

Use on the Following Vertical or Horizontal Surfaces:

Wood Deck (horizontal): Approx. 150-200 square feet per gallon depending on surface porosity

Wood Fence (vertical): Approx. 125-150 square feet per gallon depending on surface porosity

Specialty Wood: Contact for Approx. Square Footage

SEAL-ONCE Nano+Poly Ready Mix Penetrating Wood Sealer & Stain with Polyurethane (Coastal Gray) - Water-Based, Low-VOC, Waterproofing for Decks, Fences, siding & Log Homes. (1 Gallon)

Based on 1 reviews Check latest price

Product description

SEAL-ONCE has been leading the innovation in the use of nanotechnology to create long-lasting, non-toxic wood sealers & tinted wood stains since 2005. Our New & Improved NANO+POLY Penetrating Wood Sealer provides superior protection against water damage, mold, decay and eliminates warping & cupping. Unlike most top-coat sealers, NANO+POLY deeply penetrates the surface of wood, using proprietary nanotechnology to form a flexible breathable barrier, that coats the wood fibers at the cellular level. This water-based wood protector combines proprietary nanotechnology with the strength of polyurethane to provide 360° of protection. It is warranted to protect against water accumulation for up to 10 years on vertical surfaces & 6 years on horizontal. With the added POLY in this formula, it also creates a durable surface-coating, that protects against wear & tear in high traffic areas, making it a great choice for wood decks and walkways. NANO+POLY is a water-based, eco-safe sealer that goes on milky white & dries clear and is ideal for use on unfinished interior and exterior wood.. It creates a UV-stable coating that preserves the natural color of the wood and helps resist weathering and decay. It allows wood to age naturally without decay, is non-film forming and will not alter the natural beauty of the wood. NANO+POLY is Ultra-low VOC, making it VOC compliant in all 50 states, including California. NANO+POLY can be tinted and used as wood stain or finish in 11 semi-transparent color tints that also provide added UV protection. Available in pre mixed colors.. Recommended Applications Decks Railings Wood siding Log homes Thermally modified wood Docks Piers Fences Exposed beams Outdoor furniture Planters Play structures Cedar shingles. The Days of Needing an Oil-based Wood Sealer & Stain full of Toxic Chemicals are Over Features: Eco-safe Non-toxic

  • Eco Safe
  • Non-Toxic
  • Pre Mixed

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