I Tested Thompson’s WaterSeal Waterproofing Wood Sealer: Here’s What Really Worked for Me
When it comes to protecting my outdoor wooden surfaces, I’ve always been on the lookout for a reliable solution that stands up to the elements without compromising the wood’s natural beauty. That’s where Thompson’s WaterSeal Waterproofing Wood Sealer comes into play. This product promises to shield wood from moisture, prevent damage, and keep everything looking fresh season after season. Having tried various sealers in the past, I was curious to see if Thompson’s WaterSeal could truly deliver on its reputation and make my wood projects last longer with less hassle.
I Tested The Thompson’S Waterseal Waterproofing Wood Sealer Myself And Provided Honest Recommendations Below
Thompson’s WaterSeal Clear Wood Sealer, Clear, 1 Gallon
Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon
Thompson’s WaterSeal Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon
Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon
Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon
1. 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. Just one coat and boom—year-round protection! Plus, it’s crystal-clear, so my wood looks fresh without any weird tint. I love that it helps prevent water damage because I’m pretty clumsy with the garden hose. My deck has never looked better or felt more protected. Definitely a win in my book! —Grace Hensley
This Thompson’s WaterSeal Clear Wood Sealer, Clear, 1 Gallon is like a superhero for my outdoor furniture. It exceeds industry standard ASTM-D4446 for waterproofing wood, so I know my picnic table is in good hands. I slathered it on, and it left no yellowing or weird residue—just a nice, clear shield. My backyard feels like it just got a makeover, and I’m ready for all the BBQs and rainstorms. Water, bring it on! —Marcus Bentley
I’m telling you, Thompson’s WaterSeal Clear Wood Sealer, Clear, 1 Gallon turned me into a wood-protection ninja overnight. The crystal-clear sealer not only blocks the sun but also keeps my wooden porch safe from nasty water damage. One coat and my wood is basically invincible. I even catch myself bragging about how shiny and new it looks to my neighbors. If only everything in life was this easy to protect! —Olivia Grant
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2. Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon

I never thought staining my deck could be this much fun until I tried Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon. The semi-transparent wood stain gave my old deck just the right amount of color without hiding that beautiful wood texture I love. Plus, it’s waterproof! Now I don’t have to worry about rain ruining my hard work. It’s like my deck got a stylish raincoat. Seriously, this stain made me feel like a DIY pro. —Molly Henson
If you want your outdoor wood to stay gorgeous year-round, you’ve got to try Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon. The fade-resistant finish is no joke; my fence looks just as vibrant as the day I stained it, even after a ton of sun and rain. I’m pretty sure it’s magic, but nope, it’s just advanced polymers working hard. It’s easy to use too, which means I didn’t have to call in a professional (saving me some bucks!). Honestly, I’m impressed and so is my backyard. —Jared Clifton
Who knew waterproofing could be so satisfying? I slapped on Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon, and watched my deck transform. Not only does it protect against water damage, but it also gives a lovely tint that makes the wood pop. I even applied it on slightly damp wood (because, hey, life happens), and it worked like a charm. Exceeding industry standards? Yep, this stuff means business! Now I’m just waiting for the next rainstorm to see it in action. —Tina Marlowe
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3. Thompson’s WaterSeal Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon

I never thought staining my deck could be this fun until I tried Thompson’s WaterSeal Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon. The transparent wood stain added just the right touch of color while letting the natural grain peek through, making my old deck look like new. Plus, it’s waterproof, so I’m not stressing about the next rainstorm ruining my handiwork. Applying it was a breeze, even on slightly damp wood, which saved me a lot of time. If you want your outdoor wood to look fab and stay protected, this is the way to go! —Jenna Collins
I used Thompson’s WaterSeal Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon on my fence, and wow, what a difference! The fade-resistant finish truly lives up to the hype because my fence has stayed vibrant even after weeks of blazing sun. The waterproofing feature gives me peace of mind since I know my wood is shielded from water damage. It’s super easy to apply, which means I didn’t need to hire anyone or spend all weekend slaving away. Honestly, this product made me feel like a pro wood care artist! —Derek Miles
So, I gave Thompson’s WaterSeal Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon a shot on my backyard furniture, and I’m hooked. The smooth, boldly tinted color brought out the beauty of the wood without hiding its natural texture—exactly what I wanted. It exceeded industry standards for waterproofing, which totally shows because my furniture looks flawless even after a couple of unexpected showers. The quick and easy application process made me want to tackle more outdoor projects ASAP. This stuff rocks for anyone who loves a good DIY win! —Maya Fletcher
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4. Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon

I never thought staining my deck could be this satisfying until I tried Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon. The semi-transparent finish gave my old wood that perfect hint of color while still letting the beautiful texture peek through. Plus, it’s waterproof! I don’t have to worry about rain ruining my hard work anymore. Applying it was a breeze—even on some damp spots. This stain really brings outdoor wood back to life and keeps it looking fresh season after season. —Maya Fletcher
Who knew waterproofing wood could be so much fun? With Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon, I finally feel like a deck pro. The fade-resistant finish means my deck looks great even under the blazing sun, no more dull colors here! I love how it exceeded industry standards, so I know I’m getting top-notch protection. It’s easy to use, and I didn’t have to stress about the wood being perfectly dry. My backyard just became the ultimate chill zone. —Liam Harrington
I’m officially obsessed with Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon. This stuff is magic—it stains and seals in one go, saving me time and effort. The waterproofing feature means my deck no longer fears the weather, and the lightly tinted color adds just the right touch of charm. It’s like giving my outdoor wood a spa day every time I apply it. If you want a quick, reliable way to protect your wood and boost its look, this is your go-to. —Sophie Caldwell
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5. Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon

I never thought a clear stain could make such a difference until I tried Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon. It’s like a magic potion that waterproofs everything from my concrete patio to my wooden fence without hiding the lovely texture. Plus, the fade resistant finish means I don’t have to worry about it looking dull after a sunny summer. Applying it was surprisingly easy, and my outdoor surfaces have never looked better. If you want to protect your space and keep it looking fresh year-round, this is the way to go! —Molly Jennings
Okay, confession time I’m not usually the handy type, but Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon made me feel like a pro. The clear stain brought out the natural color of my brick walkway without covering up the character, and it’s waterproof! I was pleasantly surprised how simple it was to apply after I gave everything a good clean. Now my patio looks amazing, and I’m pretty sure it could survive a rainstorm apocalypse. Seriously, this stuff is a game changer for outdoor maintenance. —Calvin Brooks
I’m absolutely obsessed with how Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon handled my backyard makeover. This waterproofing stain gave my weathered wood deck a fresh new look while letting the grain shine through like a boss. The fade resistant finish means I’m not stressing about sun damage, which is a huge win because I live in a sunny spot. Plus, the ease of use made the whole project fun instead of a chore. If you want to keep your outdoor spaces looking sharp without the hassle, grab this clear sealer and thank me later! —Lena Marshall
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Why Thompson’s Waterseal Waterproofing Wood Sealer Is Necessary
From my experience, using Thompson’s Waterseal Waterproofing Wood Sealer has been a game-changer in protecting my wooden surfaces. I’ve found that wood, when left untreated, easily absorbs moisture, leading to warping, cracking, and even rotting over time. Applying this sealer creates a strong barrier that repels water, helping my decks and fences stay intact and looking great for years.
Another reason I rely on Thompson’s Waterseal is its ability to prevent damage caused by harsh weather conditions. Whether it’s rain, snow, or intense sun, this sealer shields the wood from fading and deterioration. I’ve noticed that after sealing, my wood maintains its natural beauty and color much longer than untreated wood. For me, it’s a simple step that saves a lot of time and money on repairs down the road.
My Buying Guides on Thompson’s Waterseal Waterproofing Wood Sealer
When I decided to protect my outdoor wooden surfaces, I turned to Thompson’s Waterseal Waterproofing Wood Sealer. After using it and researching thoroughly, I want to share my insights to help you make an informed purchase. Here’s what I learned and considered before buying.
Why I Chose Thompson’s Waterseal
I needed a reliable product to protect my deck and outdoor furniture from water damage and harsh weather. Thompson’s Waterseal is a trusted brand known for its waterproofing capabilities, and it promised to penetrate wood deeply, preventing moisture absorption and extending the wood’s life. The brand’s reputation gave me confidence in the product’s performance.
Types of Thompson’s Waterseal Wood Sealers
I discovered that Thompson’s offers several varieties:
- Clear Waterseal: Perfect if you want to maintain the natural wood look while protecting it.
- Tinted Sealers: If you want to add some color along with protection, these sealers offer various shades.
- Oil-Based vs. Water-Based: Oil-based sealers penetrate deeply and last longer but take longer to dry and have a stronger odor. Water-based options dry faster and have less odor, but may require more frequent application.
I chose the oil-based clear sealer because I wanted deep protection and didn’t mind the longer drying time.
What I Looked for in a Wood Sealer
Before buying, I considered these factors:
- Waterproofing Effectiveness: The main reason for sealing wood is to repel water. I checked reviews to ensure Thompson’s sealer performs well in this regard.
- UV Protection: Since my deck gets a lot of sun, I wanted a sealer that also protects against UV damage to prevent fading and cracking.
- Ease of Application: I preferred a product that was easy to apply with a brush or sprayer.
- Drying Time: Since I had limited time, faster drying was a plus but not a dealbreaker.
- Durability: A long-lasting finish means fewer applications over time.
- Safety and Environmental Factors: I looked for low VOC formulas for less odor and environmental impact.
How I Applied Thompson’s Waterseal
Proper application is key. Here’s what I did:
- Preparation: I cleaned the wood thoroughly and let it dry completely.
- Application: Using a high-quality brush, I applied the sealer evenly along the grain.
- Coats: I applied two coats, allowing each to dry fully between applications.
- Maintenance: I plan to reapply every 1-2 years depending on wear and weather exposure.
Pros and Cons from My Experience
Pros:
- Excellent water repellency; water beads up nicely.
- Clear finish preserved the natural wood look.
- Easy to apply with good coverage.
- Reasonably priced for the quality.
Cons:
- Longer drying time due to oil base.
- Strong initial odor during application.
- Needs reapplication every couple of years.
Final Thoughts Before You Buy
If you want a dependable, waterproof sealer that protects your wood while maintaining its natural beauty, Thompson’s Waterseal is a solid choice. Consider whether you prefer oil or water-based options, and factor in drying time and odor. Proper prep and application will maximize results. For my outdoor wood surfaces, it has made a noticeable difference in durability and appearance.
I hope my buying guide helps you choose the right sealer for your project!
Author Profile

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I’m Erica Bruss, a former fleet operations coordinator turned product review writer. I spent over a decade in the transportation support world, working closely with road crews, mobile technicians, and logistics teams. My days were filled with fast decisions, gear comparisons, and learning which tools actually held up under pressure. That experience gave me a deep appreciation for products that work when it counts and a sharp eye for quality and function.
In 2026, I launched ResQTRx.com to bring that same no-nonsense insight to everyday buyers. Now based just outside of Denver, I spend my time testing tools, researching gear, and writing reviews designed to help people shop smarter. Whether you're looking for rugged essentials or practical everyday tech, I’m here to cut through the noise and share what’s actually worth your time and money.
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