Model # 24105

Internet #100548129

Store SKU #430291

Thompson's WaterSeal 5 gal. Clear Multi-Surface Waterproofer
0032053241055

Thompson's WaterSeal

5 gal. Clear Multi-Surface Waterproofer

$51.66 /each

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Product Overview

The Thompson's WaterSeal 5 gal. Clear Multi-Surface Waterproofer effectively seals wood, brick and concrete surfaces, like decks and patios, from water damage. This waterproofer features a low VOC formula for safety and finishes clear to allow surfaces to maintain their natural color. Apply this sealer on by brush, roller or sprayer for convenience and allow to dry for 24 hours before recoating or touching.

California residents: see   Proposition 65 information

  • Low-VOC formula ideal for use on wood, concrete and brick
  • 5 gal. container waterproofs up to 1,000 sq. ft.
  • Clear finish maintains the surface's original color and allows wood to gray naturally
  • Dries to the touch in 24 hours to provide quick protection
  • Requires only 1-coat for efficient waterproof defense
  • May be applied with a brush, roller, dipper or sprayer
  • Online price includes PaintCare fee in the following states: CA, CO, CT, MN, OR, RI, VT
  • Click here to learn more about waterproofing

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Customer Questions & Answers

31 Questions73 Answers

Customer Questions & Answers

5 gal. Clear Multi-Surface Waterproofer
5 gal. Clear Multi-Surface Waterproofer

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6 answers

What do I clean my sprayer with?

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Asked by
Dalton Ga
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September 14, 2015
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July 14, 2016
Answer: 
1 cup Mineral spirits first run through and then 1/4 cup dish detergent and 1 qt. water second run through until clear.
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Asked by
Savannah, GA, USA
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February 2, 2016
Answer: 
Thompson's Waterseal cleans up easily with mineral spirits followed by soap and water. If you do this the tools you use can be dependably used again.
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Asked by
Tampa, FL, USA
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December 1, 2015
Answer: 
I cleaned mine with a garage grade detergent and water.
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Asked by
North Carolina
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November 2, 2015
Answer: 
You can clean your sprayer using something similar to mineral spirits.
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Asked by
Cleveland, Ohio
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October 4, 2015
Answer: 
I would run about 10oz. of paint thinner thru it , then some warm soapy water, then some warm clear water.
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Asked by
Great Falls, MT, USA
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September 15, 2015
Answer: 
Hello Smitty, Clean equipment with mineral spirits following your sprayers manufacturer’s
safety recommendations, then rinse with soap and hot clean water. Hope this helped.
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5 answers

Hello how often should I reseal the wood with this product

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April 30, 2016
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Asked by
Suwanee, GA
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September 14, 2016
Answer: 
We wash and seal decks every 3 to 5 years depending on sun and rain fall. Places like Florida and Texas every 2 years.
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Asked by
Arkansas
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July 10, 2016
Answer: 
I reseal whenever water stops beading. My wood fence generally lasts about a year, but my deck needs resealing ever 6 to 9 months.
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Great Falls, MT
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May 2, 2016
Answer: 
Hello Oh, Longevity can influenced by many factors, weather being the big one. To determine if a reseal is needed perform the splash test. Sprinkle water on various sections of surface to be sealed. If water absorbs and darkens color of substrate within five seconds, surface is porous and considered ready to be treated. If water beads up or otherwise sits on top of surface, then surface does not need Read More
Hello Oh, Longevity can influenced by many factors, weather being the big one. To determine if a reseal is needed perform the splash test. Sprinkle water on various sections of surface to be sealed. If water absorbs and darkens color of substrate within five seconds, surface is porous and considered ready to be treated. If water beads up or otherwise sits on top of surface, then surface does not need protection at this time. I hope this Helped. Read Less
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Asked by
North Carolina
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May 2, 2016
Answer: 
For outdoor items you've sealed, I would look at resealing about every 2-years.
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Asked by
Avon Park, FL
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May 1, 2016
Answer: 
Dear oh, Thompson's Water Seal is a wax-based product. Bear that in mind. It is not a permanent or long term coating such as paint or stain. You will likely need to re-apply every two years. Also note that this coating is not in solution...technically it is a dispersion which will settle in the can over time. Most likely you will need to stir the product i.e. with a stick of wood - something that will Read More
Dear oh, Thompson's Water Seal is a wax-based product. Bear that in mind. It is not a permanent or long term coating such as paint or stain. You will likely need to re-apply every two years. Also note that this coating is not in solution...technically it is a dispersion which will settle in the can over time. Most likely you will need to stir the product i.e. with a stick of wood - something that will reach down to the bottom of the can. You will need to stir it a lot to get the wax back into dispersion in order to get it to a state where it will give you a uniform coating.
The waterproofing comes from the water repellent characteristics of the wax. Out of the can (after thorough stirring) it will soak into the wood providing a surface where water will bead up. Gradually, the wax will continue to penetrate deeper into the wood while some of it will evaporate especially with direct sunlight. Hence the need to re-apply periodically.
In my case, nearly ALL of the wax was in the bottom two inches of the can. Since the 5 gallon can is 'closed head' it is much more difficult to stir it to make the coating uniform for application. Plan to spend some time stirring. Read Less
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4 answers

Clear multi surface seal, is it suppose to come out white like milk

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Yucca Valley California
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June 5, 2016
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Asked by
Suwanee, GA
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July 14, 2016
Answer: 
Yes, it will then dry clear after curing. It needs to be applied evenly with no puddles. All puddles need to be spread out.
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Asked by
Great Falls, MT
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July 13, 2016
Answer: 
Hello WildCat. Fair enough question. Yes. Product will appear milky white during application, but will dry clear. I hope this answered your question.
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Asked by
Arkansas
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June 18, 2016
Answer: 
It is milky when wet, but clears as it dries.
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Asked by
Savannah, GA, USA
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June 13, 2016
Answer: 
Dear Wildcat,
Yes, it does look like this until you get it applied. It is a bit disconcerting but when you first pour this stuff out it looks like you ought to add it to tomato soup. It is my understanding that Thomson's changed their formula a couple of years ago to give better penetration and protection. I have close to 1000 square feet of porch and decking to protect and wouldn't rely on anything
Read More
Dear Wildcat,
Yes, it does look like this until you get it applied. It is a bit disconcerting but when you first pour this stuff out it looks like you ought to add it to tomato soup. It is my understanding that Thomson's changed their formula a couple of years ago to give better penetration and protection. I have close to 1000 square feet of porch and decking to protect and wouldn't rely on anything else
Read Less
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4 answers

Cement is sticky and doesn't seem to be drying

This question is from 5 gal. Clear Multi-Surface Waterproofer
Asked by
Cleveland, OH
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August 25, 2015
I think that I've applied the multi-surface waterproofer to thick. The drive is sticky after two days of application. How can I resolve this? Should I use driveway cleaner and powerwash it again?
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Asked by
Savannah, GA, USA
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February 2, 2016
Answer: 
Dear Dale,
Instructions for use indicate that a light coating for Thompson's Waterseal is all one needs to do the job. However, it also indicates that concrete, brick and masonry surfaces must be thoroughly cleaned prior to application with a concrete cleaner according to the directions and cautions on the cleaner. Concrete that has a smooth, flat finish must be opened for proper penetration by Thomson's
Read More
Dear Dale,
Instructions for use indicate that a light coating for Thompson's Waterseal is all one needs to do the job. However, it also indicates that concrete, brick and masonry surfaces must be thoroughly cleaned prior to application with a concrete cleaner according to the directions and cautions on the cleaner. Concrete that has a smooth, flat finish must be opened for proper penetration by Thomson's Waterseal. This should be done using a concrete etch product following concrete etching use instructions carefully ensuring thorough rinsing and removal of the etching solution. Then allow the concrete to dry a minimum of 72 hours after etching before applying the Waterseal. I'm sorry you had the problem. I know things like this can be frustrating. I hope this helps.
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Asked by
North Carolina
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November 2, 2015
Answer: 
Your results are directly related to applying it too thick.
You could try to use cleaner and powerwash it again however, I think you may have better results using something like muriatic acid then powerwashing it.
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Asked by
Baltimore, MD, USA
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September 1, 2015
Answer: 
I applied it sparingly and as directed to 2 test stones on my patio and after almost a week I still have some sticky areas. I tried pressure washing it but I couldn't get it off.
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Asked by
West Point, VA, USA
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August 27, 2015
Answer: 
It sounds like a humiidity issue. If you are having high humidity levels where you live and had applied the waterproofing too thick then it will take added time to dry thoroughly.
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Customer Reviews

5 gal. Clear Multi-Surface Waterproofer is rated 2.8 out of 5 by 106.
Rated 1 out of 5 by from A week later it is still sticky We had a contractor apply this on our 2 month old concrete slab. It is in a warm and dry area, inside a structure. A week later it is still so sticky that my flip flop got stuck to it when I Walked across the floor. We throw events in our space and all anybody could bring up is how sticky the floor is. It's also blotchy and shows obvious application marks. Again, we used pro concrete people and still experienced these results. We will have to strip and buff 6000 sqft and cross our fingers the sticky and streaks come out.
Date published: 2016-08-31
Rated 1 out of 5 by from Dissatisfied with product and service I purchased a 5 gal bucket at the Carrollton Ga location The service was good They recommended that i have them shake the can. I followed directions and then ran out of the product I went back to the Cedartown location and finally was able to get someone to help me but when I asked about having the can shaken they told me "no" it was against their policy I followed directions again This has been 10 days and the floor is still sticky Very dissatisfied
Date published: 2016-08-24
Rated 1 out of 5 by from Terrible! Ruined an expensive job for me. As a contractor and a friend I will never buy any thompsons product again. Left streaks in masonry and ruined appearance. I originally thought nothing of it bc masonry always looks strange during the drying process. This stayed that way. Now I'm left trying to fix it somehow. A true waking nightmare.
Date published: 2016-08-25
Rated 5 out of 5 by from Works Great! This is a great product but we use it twice a year. We like the graying of the wood so didn't get the UV one. You still have to clean the area annually to prevent mildew and staining but that is to be expected. I roll it on. It usually takes 24 hrs to dry completely, otherwise it's tacky.
Date published: 2016-10-11
Rated 3 out of 5 by from Rolled on heavy on our driveway, one coat didn't do it, probably would take two or three coats Rolled on heavy on our driveway, one coat didn't do it, probably would take two or three coats
Date published: 2016-12-09
Rated 1 out of 5 by from A good product gone BAD!! As a construction worker, I had used this product over the years with good results. BUT, apparently they have changed the formula and it is just plain LOUSY!! I prepped my new 900 sq ft concrete pool deck as required, and applied 2 coats (6 gallons total) over the next couple of days. It looked great the first couple of rain showers, but then it seemed to rinse away, leaving no protection. Yes, THOMPSON'S refunded my purchase price, but I now have to re-do the whole surface with a different brand product. DO NOT BUY.....DO NOT BUY.....DO NOT BUY.................
Date published: 2016-09-02
Rated 1 out of 5 by from New Formula NOT FOR CONCRETE! Stay Away! Have used TWS products in past with good results however, this product is AWFUL for concrete surfaces. I have a 3 yr old covered 25'x13' front porch with a concrete floor which had never been sealed. As per label instructions, I cleaned thoroughly and dried for 4 days prior to application. Humidity was 45-65% with temps in the 58-83 degree range with no rain during and four days after application. A light and even coat of this product was applied with a roller at the label recommended 250 sq ft/gal rate for concrete. FOUR DAYS LATER THE CONCRETE IS STILL STICKY AND VERY SPLOTCHY! I I should have read the reviews on Amazon and elsewhere before buying this product. I have contacted the manufacturer to determine how to resolve this unacceptable issue!
Date published: 2016-05-11
Rated 5 out of 5 by from Excellant Protection I have used Thompson's WaterSeal for many years to protect the masonry work on my property. During winter months, moisture can penetrate masonry and freeze. The freezing can crack and split the outside finish as it expands. Applying Thompson's WaterSeal before the anticipated first freeze of the season prevents damage due to freezing. It also protects staining due to water runoff during rains and dew. Thompson's WaterSeal is the best sealer I have found that works for a full season with guaranteed results. Due to the uneven rough surface I am protecting, I apply the sealer with an industrial sprayer. The sealer dries clear and does not change the appearance of the masonry.
Date published: 2015-06-01
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