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Model # 100005

Internet # 100199356

Store SKU # 488224

5 gal. Original Waterproofing Sealer

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$65.00 /each


Model # 100005

Internet # 100199356

Store SKU # 488224

Store SO SKU # 1000055698

The Seal-Krete 5 gal. Clear Waterproofing Sealer protects vertical concrete, masonry, metal and vinyl surfaces against the damaging effects of moisture penetration. This water-based sealer can be mixed with latex paint to extend the life of the paint and improve paint adhesion. The acrylic formula provides resistance from UV rays and mildew to ensure a rejuvenated, brightened finish.

  • Seals and protects stucco, brick, concrete, painted metal and vinyl surfaces from the damaging effects of water penetration
  • 5 gal. container waterproofs up to 1,500 sq. ft.
  • Clear finish rejuvenates color on older painted and colored surfaces
  • UV resistant to guard against fading
  • Mildew resistant to prevent the coated surface from rotting and discoloring
  • Dries to the touch in 1 hour to provide quick protection
  • 2 coats are recommended for maximum
  • Water-based acrylic formula mixes with latex paint to extend the paint life
  • Low odor for less irritation during use
  • Click here to learn more about waterproofing
  • Online Price includes Paint Care fee in the following states: CA, CO, CT, MN, OR, RI, VT

Info & Guides

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Coverage Area (sq. ft.) 
Product Size (oz.) 
Dries clear 
Dry to the touch (hours) 
Maximum hydrostatic pressure (lb.) 
Number of coats recommended 
Paint Product Type 
Concrete, Brick and Masonry Sealers 
Product Form 
Time before recoating (hours) 
Clear-Crystal Clear 
UV Protection 
Warranty / Certifications
Manufacturer Warranty 
5-year warranty with prior field inspection by MFG rep 


Rated 4.3 out of 5 by 36 reviewers.
Rated 1.0 out of 5.0 by Unhappy I purchased this sealer for our apparatus floor at our ambulance station. The sealer applied easy, dried quickly and evenly and looked great until it got wet. The sealer was applied on Monday and when we washed vehicles on Friday of the same week, the sealer washed off. It looked as if someone had dumped gallons of milk on the floor with the sealer coming off the floor. The sealer was applied to a floor that was 15 years old and never had sealer applied to it previously. The floor was professionally scrubbed and vacuumed with a zamboni looking machine prior to application. I will be looking for a different product as this was a waste of money. May 9, 2014
Rated 3.0 out of 5.0 by Good and Average After all the negatives cast on Thompson's because it was milky white, I went with the special order Original Waterproofing Sealer. Well, it, too, is milky white. Although it dries clear, the liquid frequently clogged the filter on my sprayer, This resulted in occasional heavy, uneven and blotchy application. My 60-foot driveway absorbed the entire 5 gallons with a single coat. Overall, I feel the product did an average job, but not necessarily better than similar products. June 2, 2015
Rated 4.0 out of 5.0 by Seems to do the job. Expect a few clogs if spraying I found spraying easier than rolling. The problem is that there are some tiny strands of coagulated product--like soft plastic thread--in the fluid. I had to clean my nozzle tip about 12 times today in spraying 5 gal. Next time I'm going to try straining through cheesecloth or similar before it goes in the sprayer. January 27, 2015
Rated 4.0 out of 5.0 by great waterproofer This waterproof went on very smoothly. I followed the directions and it was great. May 26, 2015
Rated 4.0 out of 5.0 by Cinder Block Sealer Bought this product to waterproof the outside walls of my new cinder block shop, product was easy to apply(Graco sprayer) without any problems. Have to mention that we haven't had any rain since applied so that will be the next test. This product has left a light sheen on the cinder block which looks good in the sun, in the shade you cannot tell much difference. After finishing appling I ran a mixture of soap and water thru my spayer, it cleaned up as the instruction noted then I ran mineral spirits thru for storage. October 7, 2014
Rated 1.0 out of 5.0 by Not 100% waterproof!!! I ordered 2 of these for my concrete driveway and outside patio tiles. The application way easy with a sprayer. Don't waste your money on this buy more expensive weatherproofing sealer. Also, I've sprayed on the tile and after it dried completely, I sprayed water and it started to get milky like as if its starting to absorb the water! Thin file is on the tile and I removed it because it was slippery when wet. Maybe this sealer is better mixing with paint on vertical application instead of flat horizontal floor. The Eagle brand is better for concrete floor. I'm glad HomeDepot refunded the full amount. Thanks. August 16, 2014
Rated 5.0 out of 5.0 by Used it on my roof tiles I used this product to seal my concrete barrel roof as after gently pressure cleaning left the surface chalky as 8yrs under Florida sun had stripped away the clear coat the tiles came with. If I didn't seal it, it would get dirty/algae faster and next pressure cleaning would probably eat away on the top-coloring my roof tiles have. Get a airless sprayer (Titan 100 is only sale for $195 sometimes) if you value your time. And use it on a less windy day and do two coats. My 1700 sq house used 4 buckets of this sealer and the satin finish is perfect, not too shiny. I will update this review in 2 yrs to see if it lasted. April 28, 2014
Rated 5.0 out of 5.0 by Awesome stuff I have a 60+ year old red brick home and the mortar was beginning to get sandy -- you could see it come off like dust with a leaf blower, or rub your finger on it. I thought I was going to have a very expensive repair job coming! I tried this sealer and wow, it's hard as a rock now, light gloss to the brick (but not too much) and it looks fantastic, brightened, and absolutely solid mortar everywhere. LOVE THIS STUFF. I put it on with a 2-gallon garden sprayer--do not over pump for pressure, little pressure is needed. I dribbled it into all the mortar with a little fan spray tip. It looks like milk and goes a lot farther than I thought it would. Price on line Home Depot was best, couldn't find this product anywhere else. My house looks fantastic again. Wear rubber gloves maybe...I spent a few days peeling it off my hand. November 3, 2013
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