Model # 87505

Internet #100558274

Store SKU #561851

BEHR Premium 5-gal. Basement and Masonry Waterproofing Paint
0082474875056

BEHR Premium

5-gal. Basement and Masonry Waterproofing Paint

  • Forms a strong adhesive barrier to stop water infiltration
  • Designed for porous concrete and masonry surfaces
  • Available in custom colors

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Product Overview

The BEHR 5-gal. Basement and Masonry Waterproofing Paint with NanoGuard technology is an interior/exterior waterproofer specially designed for porous concrete and masonry surfaces. This low odor, masonry waterproofer is formulated for waterproofing above and below grade basement walls, masonry walls, retaining walls, cinder and concrete blocks, stucco and brick.

California residents: see   Proposition 65 information

  • Specially designed for porous concrete and masonry surfaces
  • 5-gal. container will waterproof up to 625 sq. ft.
  • Creates a durable and decorative finish that resists water seeping under hydrostatic pressure
  • Resists mildew
  • Alkali-resistant coating
  • NanoGuard innovative coating
  • Withstands up to 10 lb. of hydrostatic pressure
  • Dries to the touch in about 1 hour
  • Number of coats recommended is 2
  • Drying time between coats is about 4 hours
  • Click here to learn more about waterproofing
  • Online Price includes Paint Care fee in the following states: CA, CO, CT, MN, OR, RI, VT

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Customer Questions & Answers

207 Questions282 Answers

Customer Questions & Answers

5-gal. Basement and Masonry Waterproofing Paint
5-gal. Basement and Masonry Waterproofing Paint

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Can I apply this product to damp concrete block?

This question is from 5-gal. Basement and Masonry Waterproofing Paint
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October 28, 2016
Can I apply this product to damp concrete block?
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2 answers

I have bare concrete block walls on slab foundation that I would like to seal. Do I need to parge coat block first?

This question is from 5-gal. Basement and Masonry Waterproofing Paint
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October 18, 2016
New construction
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Answers (2)

Asked by
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October 19, 2016
Answer: 
Hello Kate,
We appreciate your question. If you've got cracks or gaps in the concrete slab, then yes, we'd recommend patching those areas with a fast setting hydraulic cement. Then, prime with a product such as our No. 436 Multi-Surface Primer & Sealer. Please be sure to follow all label instructions for best results. Well wishes for your project!
-Joshua
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October 18, 2016
Answer: 
The concrete walls can be painted as they are.
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We had a leak in our basement. Can this product seal the floor and create and smooth surface and seal off any odors?

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September 20, 2016
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September 21, 2016
Answer: 
Hello BJE,
Our Basement and Masonry Waterproofing paint is only designed to be used on walls and we would not recommend it on a floor. At this time, we currently don’t have a product for a floor that will seal the floor and seal off any odors. I’d suggest checking with your local Home Depot representatives for their recommendation on a vapor barrier product that has the ability to seal odors as Read More
Hello BJE,
Our Basement and Masonry Waterproofing paint is only designed to be used on walls and we would not recommend it on a floor. At this time, we currently don’t have a product for a floor that will seal the floor and seal off any odors. I’d suggest checking with your local Home Depot representatives for their recommendation on a vapor barrier product that has the ability to seal odors as well.
Best regards,
Kevin Read Less
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The paragraph description says it withstands up to 12 PSI of hydrostatic water pressure. But the chart says up to 10 PSI. Which is it?

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October 21, 2016
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October 24, 2016
Answer: 
Hello painter,
Thanks for your question, and sorry about the confusion. The product can actually withstand up to 12 psi of hydrostatic pressure built up in walls. Please be sure to follow all label instructions for best results. Well wishes!
-Joshua
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Customer Reviews

Rated 4.6 out of 5 by 75 reviewers.
Rated 5.0 out of 5.0 by Performs miracles! We have been living with a wet basement (sump pump) for 6 years. When we decided to put our house up for sale we thought we should paint the basement, if even for just aesthetic purposes. I never thought our basement would actually be dry, considering the puddles we've had over the years during spring and heavy rains. Well, I painted about a month ago and the sump pump hasn't gone off since! Unbelievable! The paint went on easily. We used 2 coats on the walls that are known to seep and 1 on the rest. Our basement is about 20x25 and I was able to complete it all in one weekend with limited help from my husband. The smell bothered him but I thought it was reasonable. We used a brush for the edges and nooks and crannies and a roller in between. We painted over moist walls. The wet walls took longer to dry by about a day. I recommend it 100% and wish we had done it sooner. August 1, 2016
Rated 5.0 out of 5.0 by Tough paint I didn't do a whole lot of surface prep for a clean are block basement wall. Scraped it with a stiff brush and put on 1 thick layer with with a cheap brush with a few touch ups afterward. Some of the block was very slightly damp from condensation and it was no problem to paint over it. I just put a fan on it and it dried in no time. It was easy to apply, went on easily but not too drippy either. After a week or so I tested the adhesion with a wire brush and it took a lot of hard scraping to get through the layer of paint. It cleans up and touches up easily. There was a very slight ammonia smell but I had no problem painting indoors for hours with this paint. Its great if you can ventilate the area but it does not smell strong. July 15, 2016
Rated 5.0 out of 5.0 by Works to waterproof basement walls IF you follow directions Surface must be clean and dry - any moisture or efflorescence and it won't adhere, no paint will. You also need to solve leak source - paint won't stop a flood. I used it on a leaky basement laundry room. 1st redirected downspouts and graded soil away from house. Then cleaned interior bsmt walls with UGL etch. Spent 2 weeks with dehumidifier drying out walls to bone dry. Skimmed with Sacrete surface bonding cement and let dry completely (another 2 weeks). Two coats of Behr waterproofer and basement has been dry for a year - had been damp for 20! Take your time, follow instructions, and this is a great deal. BUT you need to solve your leak source whether drainage/grading or water supply/downspout. Wife wanted it tinted slate blue (over my objections) and must admit she was right, color looks good. Also have used this under foam board insulation when finishing basements. June 28, 2016
Rated 5.0 out of 5.0 by Excellent product! Finally I don't have puddles on the floor of my Michigan basement every time it rains or the snow melts . I applied 2 coats to the walls with a large brush due to the stones. It was an easy Saturday morning . No mess, stays where you put it. Dries quickly and no smell. That afternoon we had an unexpected down pour and not a drop made it through. October 25, 2016
Rated 4.0 out of 5.0 by Waterproofing paint Needs two coats but works well. Goes on a little thick. October 4, 2016
Rated 5.0 out of 5.0 by Good Appearance and Adherence Applied to unpainted dark gray cinder block walls to brighten appearance of basement After a month, it looks fine. Did not use primer. Brushed on heavy first coat to fill in pores; this was essential to obtaining good coverage in two coats. Applies smoothly, but allow plenty of time--especially for first coat. Paint is very thick and difficult to stir. I bought a gallon at a time, so HD could put paint in shaker shortly before application. Basement is dry, so cannot judge water blocking ability. No bad smell. Good appearance and adherence. HD Memorial week rebate of ten dollars per gallon was a nice added incentive. I'm a happy customer. June 21, 2016
Rated 4.0 out of 5.0 by better then I expected paint went on easy, not much of a smell, did not have yellow spots coming through like all other paints I used in the bastment. August 20, 2016
Rated 5.0 out of 5.0 by Really satisfied, exceeded my expectations My Portland basement had several moisture intrusion points, no water necessarily, but definitely the cement would get wet. I applied the product during fall and now that is February I haven't seen any moisture problems at all, my basement is still dry and the smell has improved a big deal. Pretty thick to apply. The most troublesome moisture point shows a yellowish stain, but that happened within hours of application, the cement was permanently moist; after a few months now, the stain hasn't increased. I would have tinted the color if I would have known that it was bright white, but I was determined to finish the project so I went ahead with white. Very satisfied. February 1, 2015
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