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Model # 27515

Internet # 100204228

Store SKU # 435688

5 gal. White Masonry Waterproofer

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$108.00 /each




Model # 27515

Internet # 100204228

Store SKU # 435688

The DRYLOK 5 gal. White Masonry Waterproofer is a low-odor paint formulated to protect any interior, exterior, above- or below-grade masonry surface. This waterproofing paint can withstand 10 lb. of hydrostatic pressure equivalent to water pressure at a depth of 22 ft. This ready-mixed formula requires only 2 hours to dry to the touch and 3 hours to accept recoating for quick task completion.

California residents: see  Proposition 65 information

  • Seals masonry walls, cinder and concrete blocks, stucco, brick, retaining walls, basements, bird baths and foundations
  • 5 gal. container waterproofs 500 to 600 sq. ft.
  • Low-odor latex-based formula dries white and cleans up easily with water
  • Withstands up to 10 lb. of hydrostatic pressure
  • Dries to the touch in just 2 hours to provide quick protection
  • Use 2 coats to ensure maximum waterproof defense
  • Ready-to-use formula needs no premixing
  • 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.) 
Coating Product Category 
Dries clear 
Dry to the touch (hours) 
Maximum hydrostatic pressure (lb.) 
Mildew Resistant 
Number of coats recommended 
Paint Product Type 
Concrete, Brick and Masonry Sealers 
Paint/Stain Key Features 
Paint/Stain/Waterproofer Product Type 
Masonry, Stucco & Brick 
Product Form 
Time before recoating (hours) 
UV Protection 
Warranty / Certifications
Manufacturer Warranty 
10 Year Fully Transferable Warranty 


Rated 3.9 out of 5 by 15 reviewers.
Rated 5.0 out of 5.0 by Good product Applied this paint to the basement walls of an investment property and I am very happy with the outcome. Made the old grey cinder block walls look like new. March 31, 2014
Rated 5.0 out of 5.0 by Dry Lok waterproofer Dry Lok is a great product and I have used it several times in the past. Works well and lasts a long time. Most recent project was a wet and moist basement and once the walls were done it was remarkably improved and also looked great. June 14, 2015
Rated 5.0 out of 5.0 by Great Product; Worth the Investment This product was used to help seal the walls for the finishing of a basement in which the outside grading of soil was not ideal. Although the soil outside pitched towards the house minimally, it did create problems because of the older nature of the house’s brick foundation. Additionally, because of the porous nature of the brick, seepage was constant. After two coats of DryLok, there has been no seepage, which allowed for the basement to be finished. The first coat requires a stiff brush and the second coat was rolled on. Although the product may appear expensive, it is worth the peace of mind knowing that behind your finished walls no moisture is coming through. If you are thinking about finishing your basement and have seen any moisture, I would highly encourage the use of this product to mitigate any seepage. August 20, 2010
Rated 5.0 out of 5.0 by This Paint Rocks! Although the guarantee says ten years, I got FIFTEEN years of dry walls! We are repainting the entire basement this time, not just the leaky parts. P.S. Great Tip for cleaning this rough surface paint for any mildew that appears in very damp places: Mix up a 50/50 bleach & water solution and spray the walls with a mister. Mop op the floor and the walls look liike new with no scrubbing! August 23, 2010
Rated 4.0 out of 5.0 by great product This stuff seems to be working fine on sealing the basement walls. Although, if you have serious water issues, you better resolve them on the outside of the house and not depend on this paint to stop leaks forever. It's low odor. Noticable and a fan is probably best to move the air in the room. But not overpowering like other paints I've worked with. I put two coats on walls and also on floors. Seems to be working so far after a wet summer. If you get the 5 gallon, make sure you have a electric drill with a mixing bit on it to mix the paint as it settles from sitting so long on the shelves. August 15, 2011
Rated 1.0 out of 5.0 by JUNK. does not work!!!! I spent $400 a few years ago on this product and 20 hours of my time. I have a block foundation and I prepped the surface with the etching solution and wire brushed any spots that needed it. I followed the directions!!! I have an entire wall that the Drylock is peeling off. I contacted the Manufacturer and they tell you that it will stop water but not Efflorescence ( they now have this on their website but when I bought the product it was not there!!!). Efflorescence is the white crystal that if left behind when water it will stop the water but once the water dries and the efflorescence appears the paint will peel off and you are out of luck and have wasted you money and time. UGL the maker does not stand by their product, when you contact them they get defensive right away. AGAIN>>>THIS STUFF IS JUNK!!! March 24, 2014
Rated 5.0 out of 5.0 by Common sense This product works great when used correctly. No, it doesn't last over efflorescence (or dirt, grease, oil) If it flakes off, you didn't have the surface clean. Common sense. March 6, 2015
Rated 4.0 out of 5.0 by drylock is ok We had two days to drylock our 90 square foot basement. Product mixed easy and was pretty easily applied. Hardest part was the first coat that needed to be brushed on using a masonry brush. I was able to roll the second coat. First coat took about 6 hours, second around 3. Fumes weren't really a big issue, we luckily have two windows with fans running. August 11, 2007
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