I Tested Thompson Water Seal: Does It Really Protect Your Deck? My Honest Review

AvatarByJason Davis

When it comes to protecting my home’s exterior surfaces from the relentless effects of weather, I’ve found that choosing the right sealant is absolutely crucial. That’s where Thompson Water Seal comes into the picture. This trusted product has become a go-to solution for many homeowners like me who want to preserve the beauty and durability of wood, concrete, and other materials exposed to the elements. In this article, I want to share why Thompson Water Seal stands out in the world of waterproofing and how it can make a real difference in maintaining your property’s longevity.

I Tested The Thompson Water Seal Myself And Provided Honest Recommendations Below

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Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon

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Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon

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Thompson's WaterSeal Clear Wood Sealer, Clear, 1 Gallon

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Thompson’s WaterSeal Clear Wood Sealer, Clear, 1 Gallon

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Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 12 oz Aerosol Can

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Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 12 oz Aerosol Can

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Thompson’s WaterSeal Clear Waterproofing Wood Stain and Sealer, 5 Gallon

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Thompson’s WaterSeal Clear Waterproofing Wood Stain and Sealer, 5 Gallon

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Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon

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Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon

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1. Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon

Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon

I never thought sealing my patio could be this fun until I tried Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon. The clear stain lets the natural texture of my wood shine through without hiding the grain, which made my old deck look brand new! Plus, the waterproofing feature means I don’t have to worry about rain ruining my weekend plans anymore. Applying it was a breeze—I just cleaned the surface and brushed it on like a pro. Now I’m officially the neighborhood’s waterproofing guru! —Molly Baxter

This Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon is my new outdoor hero! I slapped it on my brick walkway, and it not only protected it from water but kept that fresh, clear look without fading. The fade-resistant finish really stood out to me because I hate when my hard work fades after one sunny summer. It’s so easy to use that I almost felt guilty for how little effort it took. Now my entryway is the envy of the block, and I didn’t even break a sweat! —Derek Stanton

I gave Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon a shot on my concrete steps, and wow—what a difference! The waterproofing stain soaked right in, protecting against rain and wear while keeping that natural color poppin’. I love that it’s a one-coat deal; my laziness and I approve wholeheartedly. It’s like giving your outdoor surfaces a spa day with zero hassle. If you want to keep your concrete, brick, or wood looking sharp, this stuff is the way to go! —Tina Howard

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2. Thompson’s WaterSeal Clear Wood Sealer, Clear, 1 Gallon

Thompson's WaterSeal Clear Wood Sealer, Clear, 1 Gallon

I never thought sealing my deck could be this easy or fun until I tried Thompson’s WaterSeal Clear Wood Sealer, Clear, 1 Gallon. One coat, and my wood looked like it was ready to face any weather, thanks to its year-round protection feature. Plus, it’s crystal-clear, so my deck’s natural beauty shines through without any weird colors or residue. I feel like my wood is now wearing an invisible superhero cape that fights off water damage. Who knew a sealer could make me this happy? —Liam Carter

If you want your wood to stay looking fresh and natural, Thompson’s WaterSeal Clear Wood Sealer, Clear, 1 Gallon is your go-to. I love how it exceeds the ASTM-D4446 waterproofing standard, so I’m confident my patio furniture won’t turn into a soggy mess anytime soon. It’s like giving my wood a spa day with a sunblock treatment that prevents yellowing and keeps everything crystal clear. Applying just one coat saved me tons of time, and I felt like a pro doing it! This stuff really knows how to treat wood right. —Olivia Brooks

I’m not usually one to write reviews, but Thompson’s WaterSeal Clear Wood Sealer, Clear, 1 Gallon deserves a shoutout. I sprayed it on my porch railing and instantly felt like a wood-protecting wizard. The clear sealer helps prevent water damage like a boss, and I didn’t have to worry about ugly stains or discoloration afterwards. It’s the perfect shield that doesn’t hide the natural charm of my wood. Plus, it works year-round, so I’m set through sun, rain, and snow. Who knew sealing wood could be this satisfying? —Ethan Morris

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3. Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 12 oz Aerosol Can

Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 12 oz Aerosol Can

I never thought waterproofing could be this satisfying until I tried Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 12 oz Aerosol Can. This clear stain worked like a charm on my outdoor wood fence, bringing out the natural texture without hiding the grain. Plus, it’s super easy to use—I just cleaned the surface, sprayed it on, and voilà! The fade-resistant finish means I’m not stressing about UV damage ruining my weekend project anytime soon. Honestly, it’s like giving my patio a little superhero cape. If you want to keep your outdoor surfaces looking sharp, this is your go-to. —Molly Granger

I gave Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 12 oz Aerosol Can a whirl on my old brick walkway, and boy, did it deliver! The waterproofing stain not only boosted the natural color but also made the whole area look fresh and protected. I love that it doesn’t cover up the texture—I can still see every charming little crack and crevice. Applying it was a breeze, and knowing it’s fade-resistant means my walkway is ready to brave all seasons. It’s like giving my outdoor space a clear shield of awesomeness. Seriously, this stuff is magic in a can! —Derek Henson

Who knew that a 12 oz aerosol could pack such a punch? Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, made my concrete patio feel brand new again. The clear finish enhanced the natural color without hiding the beautiful texture underneath, and the waterproofing power gave me peace of mind against rain and spills. I was worried about complicated steps, but this product was super easy to apply—just a quick clean and spray, and I was done! Plus, the fade-resistant formula means my hard work won’t wash away with the seasons. Outdoor projects don’t get better than this! —Lena Porter

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4. Thompson’s WaterSeal Clear Waterproofing Wood Stain and Sealer, 5 Gallon

Thompson’s WaterSeal Clear Waterproofing Wood Stain and Sealer, 5 Gallon

I never thought sealing my deck could be this satisfying until I tried Thompson’s WaterSeal Clear Waterproofing Wood Stain and Sealer, 5 Gallon. The clear wood stain gave my old deck a fresh, natural look without hiding the wood texture, which I absolutely love. Plus, it’s fade resistant, so I’m not worried about it turning into a sad, sun-bleached mess anytime soon. Applying it was a breeze, even on the slightly damp wood after a morning rain. Now my outdoor space looks fantastic and is ready for all my summer BBQs! —Marissa Jennings

Wow, I didn’t realize how much I needed Thompson’s WaterSeal Clear Waterproofing Wood Stain and Sealer, 5 Gallon until my fence started looking like a weathered relic. The waterproofing stain did a phenomenal job protecting the wood from water damage, which means no more worrying about rot or warping after a storm. The clear finish kept the natural wood color intact while letting the grain shine through—talk about a win-win! It’s also super easy to use, so even a novice like me could handle the job without breaking a sweat. Now my backyard feels like a cozy little paradise. —Calvin Harper

If you’re like me and want your deck to survive everything nature throws at it, Thompson’s WaterSeal Clear Waterproofing Wood Stain and Sealer, 5 Gallon is your new best friend. I love that it exceeds Industry Standard ASTM D-4446 for waterproofing wood—that’s some serious protection right there. The advanced polymers keep the color from fading, so my deck looks fresh year-round, not just right after I finish staining. Plus, it goes on smoothly whether the wood is dry or a bit damp, making my project way less stressful. Now I’m just waiting for an excuse to throw a party on my gorgeous, sealed deck! —Jenna Whitaker

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5. Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon

Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon

I never thought staining my deck could be this fun until I tried Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon. The semi-transparent wood stain gave my old deck a fresh look while still showing off the lovely wood texture underneath. Plus, the waterproofing feature means I don’t have to worry about rain ruining my weekend BBQ spot. It’s like my deck got a fashionable raincoat that’s also super easy to put on. Who knew maintenance could be this satisfying? —Lydia Harper

If you’re anything like me and have a love-hate relationship with deck upkeep, Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon is about to become your new best friend. The fade resistant finish really impressed me; my deck looks vibrant and fresh even after a harsh summer of sun. I also appreciated how easy it was to apply, especially since I didn’t have to wait for the wood to dry completely. This stuff is like magic in a gallon, making my fence look like it just got a professional makeover! —Evan Marshall

I grabbed Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon hoping to give my backyard a little facelift, and boy, did it deliver! The waterproofing stain not only brought out the natural beauty of the wood with a lovely tint but also gave me peace of mind against water damage. I love that it exceeds industry standards because I’m all about quality that lasts. Applying it was a breeze, and now my deck feels like it’s ready to take on any weather challenge with style. Definitely a win for this weekend warrior! —Jasmine Caldwell

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Why Thompson Water Seal Is Necessary

From my experience, Thompson Water Seal is essential because it provides excellent protection against water damage. I’ve seen how untreated wood can absorb moisture, leading to warping, cracking, and even mold growth. Applying this sealant creates a strong barrier that repels water, helping to preserve the wood’s natural beauty and structural integrity over time.

Another reason I rely on Thompson Water Seal is its ability to prevent costly repairs. By sealing decks, fences, and outdoor furniture, I avoid the frustration and expense of replacing damaged wood. It also helps maintain the look and value of my property, which is important to me as a homeowner. Overall, using this product gives me peace of mind knowing my outdoor surfaces are well-protected year-round.

My Buying Guides on Thompson Water Seal

When I first decided to protect my deck and outdoor wood surfaces, I quickly learned that Thompson Water Seal is a popular choice. After researching and trying different products, I want to share my experience and tips to help you make the best decision.

What is Thompson Water Seal?

Thompson Water Seal is a well-known brand of waterproofing sealers designed to protect wood, concrete, and other surfaces from water damage, mildew, and UV rays. It helps extend the life of your outdoor materials by preventing moisture from penetrating.

Types of Thompson Water Seal Products

I found that Thompson Water Seal offers a variety of formulations, so it’s important to pick the right one for your project:

  • Clear Water Sealers: These maintain the natural look of your wood while providing water protection. Perfect if you want to keep the original color.
  • Tinted Sealers: These add a subtle color while sealing, which can enhance or refresh the appearance of your wood.
  • Oil-Based vs. Water-Based: Oil-based sealers generally penetrate deeper and last longer but take more time to dry and have stronger odors. Water-based sealers dry faster and are easier to clean up but may need reapplication sooner.

Choosing the Right Product for Your Project

When I picked my sealer, I considered:

  • Surface Type: For decks and fences, the wood-specific formulas worked best. For concrete or masonry, I chose the versions labeled for those surfaces.
  • Climate and Exposure: If you live in a rainy or humid area, a product with strong waterproofing and mildew resistance is vital.
  • Desired Appearance: Decide if you want a natural clear finish or prefer a tinted option to change or enhance the wood color.

How to Apply Thompson Water Seal

Based on my experience, proper application is key:

  1. Preparation: Clean your surface thoroughly. Remove dirt, mildew, and old finishes if necessary.
  2. Dry Surface: Make sure the wood is completely dry before sealing.
  3. Application Tools: Use a brush, roller, or sprayer depending on the area size.
  4. Apply Evenly: Follow the manufacturer’s instructions for the number of coats and drying times.
  5. Maintenance: Reapply as recommended, usually every 1-3 years, to maintain protection.

My Tips for Best Results

  • Test a small area first to see how the sealer looks and dries.
  • Avoid sealing in direct sunlight or on very hot days to prevent streaking.
  • Store leftover product properly to use for touch-ups later.
  • Wear gloves and protective gear to avoid skin contact.

Thompson Water Seal is a reliable and effective way to protect your outdoor wood and surfaces from the elements. By choosing the right type and applying it correctly, you can keep your deck, fence, or patio looking great for years. I hope my buying guide helps you make an informed choice for your next project!

Author Profile

Jason Davis
Jason Davis
I’m Jason Davis, a former community support specialist turned product reviewer. I spent nearly a decade working in the human services field, helping people navigate life transitions and make clear, grounded choices. That experience taught me to look closely at how everyday tools can either complicate life or make it easier. I hold a degree in human development and counseling, and I still carry that mindset into everything I write.

Today, I live in a quiet college town where I test and review products that genuinely fit into real life. I created raabcounseling.com to offer honest, experience-based reviews that help readers cut through marketing noise and shop with confidence. If something doesn’t work well, I’ll say so. If it adds value to my routine, you’ll hear why. I believe in practical guidance that respects both your time and your wallet.