Model # 87501

Internet #203938614

BEHR Premium 1-gal. #BW-27 Silt Basement and Masonry Waterproofer

BEHR Premium

1-gal. #BW-27 Silt Basement and Masonry Waterproofer

$27.98 /each

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Product Overview

The BEHR Premium Basement and Masonry Waterproofer with NanoGuard Technology is an interior/exterior waterproofer with a 10 year customer satisfaction guarantee. It is designed for porous masonry surfaces and withstands up to 12 PSI of hydrostatic pressure and 98 mph wind-driven rain. This low odor, mildew resistant waterproofer provides a smooth, decorate finish that is sprayable for easy application. Ideal for use on above and below grade walls, retaining walls, garage walls, masonry walls, cinder blocks, stucco, brick, foundations and landscape walls.

California residents: see   Proposition 65 information

  • Ideal for interior and exterior vertical concrete and masonry walls
  • 10 year customer satisfaction guarantee
  • Mildew resistant finish
  • Withstands 12 PSI of hydrostatic pressure and 98 mph wind-driven rain
  • 100% Styrene Acrylic
  • Available in custom colors
  • Durable Flat finish
  • 75 - 125 sq. ft. of coverage per-gal.
  • Sprayable, saves application time
  • Easy clean-up with soap and water
  • 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

1-gal. #BW-27 Silt Basement and Masonry Waterproofer
1-gal. #BW-27 Silt Basement and Masonry Waterproofer

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Can I apply this product to damp concrete block?

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

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?

This question is from 1-gal. Basement and Masonry Waterproofer
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October 21, 2016
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Answer (1)

Asked by
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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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2 answers

Leak through masonry wall

This question is from 1-gal. #876 Basement Gray Basement and Masonry Waterproofer
Asked by
Texas
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October 20, 2016
I have a leak that I am unable to pinpoint. Water is dripping in from an exterior stone siding of my home to the inside of the wall. I caulked all the mortar joints and after spayed water on the exterior wall and water is still dripping in. If I cover the entire suspected area of the interior wall with your product, do you believe this may resolve my issue.
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October 24, 2016
Answer: 
Hello david78660,
We appreciate your question. Yes, the walls can be damp, but any active water leaks would need to be stopped before applying our product. Otherwise, the product may fail. If unable to stop the leaks, you might check with Home Depot for another brand's coating that could suit your project needs. Best wishes for your project!
-Joshua
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October 20, 2016
Answer: 
Although it can be used on masonry walls, it shouldn't be applied to an area with active water leaks.
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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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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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Customer Reviews

1-gal. #BW-27 Silt Basement and Masonry Waterproofer is rated 5.0 out of 5 by 13.
Rated 5 out of 5 by from Excellent performance and easy application! We purchased an older home with a leaky basement, and have tried a few different products to seal the walls. One waterproofing paint was so thick and sticky it was like painting with thick maple syrup. The second one didn't cover well and the smell was awful. I started to think we were going to have to hire a contractor if we were ever going to have a dry basement. After some serious frustration and quite a bit of money spent, we tried the Behr waterproofer. What a difference! The paint went on smoothly without any drag at all, even over some rough areas where the wall had been textured with sand. The coverage was great. It has been on the walls for a couple of months now and no water or moisture yet! Very pleased! [This review was collected as part of a promotion.]
Date published: 2016-02-19
Rated 5 out of 5 by from Excellent Easy Coverage, Minimal Smell My husband and I purchased this to basement waterproofer to coat the walls in our home built in 1978. Unlike previous experiences in other homes using Drylock, this Behr had a very minimal smell making it much easier to do this project on our own. When purchasing this, the gentlemen at Home Depot noted that the price difference between this and Drylock was minimal, but that the Behr quality was much superior. He noted that Drylock hasn't updated their formula in the last 30 years and that Behr has much better technology. I couldn't agree more. We were really impressed with the ability to tint the color of the Behr paint and ended up going with a nice shade of light grey. The application of the paint was easy and the coverage was great. The can noted that you could apply it to slightly moist surfaces which was a relief because we did have a small area were the cinderblock was already moist. We applied two coats and wow, what an improvement over the bland cinderblock! I would definitely recommend to anyone that has a moist basement. [This review was collected as part of a promotion.]
Date published: 2014-09-15
Rated 4 out of 5 by from Great but very thick I have used this in several areas. It worked great in an underground basement, although it took 6 coats to finally stop the water penetration. I have also used it to paint my stucco home. The material went on quite easily and with 2 coats, it looks like new several years out. The biggest challenge is that it is really thick, think frosting and you get the idea, particularly on a cold morning. Don't try to stir it to mix in the pigment, you will be all day. Every day I was planning to paint, I took it to my local home depot to shake it. Never had a problem that way. It is really hard to roll on and I couldn't imagine spraying it, even though the directions say you can. I used a brush, which took a long time, but it seems very durable so it was effort well spent. I have also used this on wood and it works but it takes several coats, since wood is porous. But once I was done, it was really water proof and looked great. Finally, the custom color selection is pretty extensive, but don't expect every possibility. Deep colors are just not possible and the finish is totally matte, but very smooth to the touch.
Date published: 2015-04-22
Rated 5 out of 5 by from Best thing we've found! We were at our wits' end when we came across BEHR PREMIUM® Basement & Masonry Waterproofer. We seriously couldn't have found a better product! Our tiny cracks in the foundation were seeping water every time we had a bad storm and this totally did the trick! We can't thank you enough, BEHR!
Date published: 2014-06-28
Rated 5 out of 5 by from Great paint exceeded my expections!!! My daughter purchased her first home, and the garage walls showed some mold and effervescent. We cleaned the walls, read all the reviews on several companies. I had previously used another product to prevent water from entering my home. So I was surprised at the lack of odor. We picked almond cream. It took two coats, the color was great. The coverage was great. One tip I would say is to work the roller lightly, until the paint is applied, use more pressure when the roller is emptied, working the paint into the holes. Use a full roller to go over areas not completed covered. applied with a full roller. The garage is 14 feet high, I used an extension on the roller, and never climb a ladder. Covered wall great. It has only been up for day, but it looks wonderful. I would not hesitate to recommend this product. Second coat was done in half the time of the first coat. [This review was collected as part of a promotion.]
Date published: 2015-09-22
Rated 5 out of 5 by from Changed my dark moist basement into a usable space I love this product. I was hoping to clean up the basement and make it less damp but I was suprised to find that it made it dry. Although the prep time was very long and tedious, it was well worth it. My preping properly which included regrouting lots of the mortar between the bricks, it was well worth it to do it right. I now have a very usable dry basement that I don't fear to go into! [This review was collected as part of a promotion.]
Date published: 2015-05-13
Rated 5 out of 5 by from Best basement paint used on walls I bought this paint for my living room walls because I have the basement floor where my living room is located and not only is it only 1 coat but moisture won't be a problem yay!!!!! This paint looks wonderful
Date published: 2014-10-07
Rated 5 out of 5 by from Looks Great The application instructions were very good and I tried both a roller & a 4" brush to apply to my block basement walls. I found that I got better coverage filling the nooks and crannies of the porous block surface with the brush. The first coat took a little longer and required more effort than the 2nd coat. As the directions state, a 2nd coat was necessary for full coverage and good color. It also took much less effort and gave more coverage. I had some minor cracks that were filled in and visibly disappeared after the application. The odor was hardly noticeable and was completely gone the next day. I started in one corner and am working my way around the basement. The completed sections are brighter, easier to keep clean and are a major improvement in the appearance. [This review was collected as part of a promotion.]
Date published: 2015-04-23
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