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Extreme White Flat Solid Latex Mildew Resistant Interior/Exterior Waterproofer ( 5-gallon )

Ratings & Reviews for DRYLOK Extreme White Flat Solid Latex Mildew Resistant Interior/Exterior Waterproofer ( 5-gallon )

4.6
527
Review
 4.6 out of 5
527 Reviews


94% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The Drylok Extreme masonry waterproofing product received mixed reviews. Many customers reported that it was easy to apply, provided excellent coverage and waterproofing, and resulted in a bright white finish. However, a significant number of customers were disappointed, indicating that the product did not effectively waterproof their spaces and that they continued to experience moisture and water problems. Some also noted that the product started peeling or coming off the walls over time. Careful preparation and application seem to be key factors in determining the product's effectiveness.

Customer review summary generated by AI, including incentivized reviews.
527 Customer Reviews

No more moisture.

Would Recommend

This works really well to help with basement moisture. It takes a little bit of muscle work to apply as it is fairly thick.

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Super basement wall option

Would Recommend

Excellent coating for basement walls!

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Awesome

Would Recommend

Awesome

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Worked well for me

Would Recommend

I like the product and is was easy to apply. It is very heavy though and the handle dug into my hand. Other than that it worked well for my basement walls

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Good product as promised

Would Recommend

Product was as described and covered well. I purchased two 5gal pails and the ring to remove the pour spout broke before the spout could be opened creating a problem.

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Extremely white.

Would Recommend

Covers a very large area and is holding up on my basement walls.

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Good product

Easy to apply did its job

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Disappointed and frustrated

Would Not Recommend

Purchased 6 total gallons; 1-5 gallon pail and I individual gallon.. already have water stains coming through. Expect refund

November 14, 2025

From DRYLOK

Response from Technical Services

Thank you for sharing these photos and for taking the time to explain what you’re seeing. We understand how frustrating this is after investing both t...

Technical ServicesDecember 3, 2025

Its thick and heavy

Would Recommend

Very good coverage , color was very good. I would buy it again for waterproofing our foundations.

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Great product would buy again

Would Recommend

Was easy to apply had a thick consistency that adhered well to the basement walls and should help with durability. We have had heavy rains since applying with no leaking. The product was very bright which was a plus when applying to the basement. The odor was noticeable but quickly dissipated. Would purchase again.

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It is as good as people say it is

Would Recommend

This is my first time using the product and I already know it won’t be the last. After reading and viewing many videos online, along with following the proper instructions, I apply the first coat. It does have a slight learning curve ball as the paint’s viscosity is different than others. However after a few minutes you get the hang of it. It was easy to apply. There’s some strong odor at first but the VOC is low and dissipates quickly. I’m super happy with the result so far and I’m looking forw...

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