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Thompson's WaterSeal

Model # TH.041845-20

Internet # 204811666

Store SKU # 1000034857

5 gal. Acorn Brown Transparent Waterproofing Stain

This item has been discontinued.
The Home Depot no longer carries this specific product.

$85.50 / each



Model # TH.041845-20

Internet # 204811666

Store SKU # 1000034857

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.

California residents: see  Proposition 65 information

  • Shows most wood grain and minimum color
  • 1-coat protects 3 years on decks or 4 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
  • Subject to or will include a PaintCare recycling fee in the following states: CA, CO, CT, MN, OR, RI, VT

Info & Guides

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Container Size 
5 GA-Gallon 
Coverage Area (sq. ft.) 
Application Method 
Spray, Roller or Brush 
Soap and Water 
Color Family 
Browns / Tans 
Concrete Use 
Deck Use 
Dry to the Touch (min.) 
Exterior Paint & Stains Product Type 
Deck/House/Concrete Stain 
Low Temperature 
Paint Product Type 
Deck and Patio Stain 
Paint Type 
Primer Required 
Time before recoating (hours) 
UV Resistant 
Warranty / Certifications
Manufacturer Warranty 
Satisfaction Guaranteed 


Rated 2.3 out of 5 by 8 reviewers.
Rated 5.0 out of 5.0 by Really liked this product! I'm surprised about the poor reviews. I did just apply this so I cannot vouch for how long it lasts - if it matches the 4 years it claims on the bottle, but i loved the color and felt it went on easy. Mine does have thinner coverage in areas, but i'm using on a very long pole fence, so i'm not concerned about it going on perfectly even, I would imagine on a deck it may be harder to get the color to be consistent all the way across. I think it looks great, the color is very nice. It is hard to clean off your hands, but I just hope this means it's a good stain! May 31, 2015
Rated 4.0 out of 5.0 by Satisfied After reading application instructions for other stains, we thought we would have to wipe the stain down after we had applied it before it dried. Once we realized that this was unnecessary, application went a lot faster. Also, we were unable to use this stain in a sprayer because of the consistency. The color was much redder than anticipated since we were expecting more of a brown color. Coverage is good and I would almost call it a semitransparent more than a transparent stain. August 31, 2014
Rated 1.0 out of 5.0 by Won't last I put this on my deck and fence. Less than a year later it's peeling off and looks terrible. The only saving grace is that Thompson's customer service was good and helpful. Still can't get back the hours of my life I wasted applying this stuff. June 5, 2015
Rated 1.0 out of 5.0 by Not worth the money this product was used on a new deck 1 year ago and look great, and had to use 2 coats. but a year later, if you were to see my deck, you would think preschooler done this work. Just did not hold up, peeling and fading off bad, now I will have to redo my deck, but I will never use Thompson stain again. Very bad product for the money. March 30, 2015
Rated 1.0 out of 5.0 by not worth money I bought this a year ago. I had to do it again. Look like it was never applied. I used something different. Use good product at first. It was exposed to the sun. I was disappointed . July 20, 2014
Rated 1.0 out of 5.0 by Should be labeled paint To get a uniform appearance it must be put on thick. It is not transparent when applied in this manner. If you try to spread it on thinner it streaks. It must be be worked in with a rag to get uniform appearance.It is not practical for a large deck. September 14, 2014
Rated 4.0 out of 5.0 by Not bad at all! We applied it over new decking with a backpack sprayer, had no problems with application. Use a wide flat spray nozzle with a sweeping motion when applying, product went on well. You will have drips and runs if concentrated too long or if sprayer is too close to the area you are spraying Thompson Waterproofing on. After a few practice passes on the back side, all went very well. When the deck was dry, walking on it was very nice under bare feet. July 7, 2014
Rated 1.0 out of 5.0 by Horrible new formula must be brushed on New water-based formula is impossible to apply with a pump sprayer and most just runs off onto the ground. Don't buy unless you plan to use a brush or roller. Difficult to clean up and extremely messy. The old formula was a breeze to apply and not too difficult to clean up with mineral spirits. April 25, 2014
  • 2015-07-01T13:28:51.489-05:00
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Store Exclusive. This item is available for purchase in select stores only.