Model # 87001

Internet #203938799

BEHR Premium 1-gal. #BW-37 Mountain Moss Concrete and Masonry Waterproofer

BEHR Premium

1-gal. #BW-37 Mountain Moss Concrete and Masonry Waterproofer

$27.98 /each

Frequently Bought Together

Product Overview

The BEHR Premium Concrete 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
  • Coverage area: Rough 75-100 sq. ft., Smooth 100-125 sq. ft., two coats minimum are required
  • Durable flat finish
  • 100% Styrene acrylic
  • Mildew resistant finish
  • Withstands 12 psi of hydrostatic pressure and 98 mph wind-driven rain
  • Easy clean-up with soap and water
  • Sprayable, saves application time
  • 10 year customer satisfaction guarantee
  • Online Price includes Paint Care fee in the following states: CA, CO, CT, DC, ME, MN, OR, RI, VT

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.

Specifications

Dimensions

Details

Warranty / Certifications

More Products With These Features

Search

Customer Questions & Answers

Can this be used to paint a stone/concrete outside fountain?

I want to paint my outside stone/concrete fountain. Would this product be suitable for that purpose? I want to paint the entire fountain including inside the bowls. If this product was used for this purpose would it be nontoxic to wildlife drinking from the fountain once the paint is dry? Thank you.
Asked by: di
Hello di, Thanks for your question. We wouldn't recommend any of our products for use on a fountain due to submersion under water. Our coatings don't have the durability features needed for submersion. You might look for a marine-based product or a coating that will resist constant water (like a pool paint). You might check with Home Depot for one of these products of another brand. Best wishes for your project!
Answered by: Behr
Date published: 2016-06-23

Toxic ingredients?

Are there any potentially toxic ingredients in this product?
Asked by: Vacilon
Hello and thank you for your question. For all safety details, please refer to the MSDS sheet for BEHR PREMIUM® Concrete & Masonry Waterproofer: http://www.actiocms.com/VIEW_MSDS/AuthorDisplay_V402/msdsdisplaycode_author_new_MASTER.cfm?edit_msds_id=8350&dbname=production&Hide_Section_Numbers=N&formatcode=1&language=1&noprint_label_fax_email=Y
Answered by: Behr
Date published: 2015-09-20

Question regarding concrete and masonry waterproofer

I have water intrusion from the brick wall to the inside wall flashing which I believe is fine. Unforutunately this water has nowhere else to flow down at the bay window area and is getting inside the house. Will painting the brick wall prevent this water intrusion ? Also, is this siloxane sealer? How long does this last? Is there any surface preparation required? Will this seal any cracks in concrete or mortar
Asked by: jaideep
Hello and thank you for your questions. To make it easier, we've broken it down by questions: 1. Will painting the brick wall prevent this water intrusion ? The Concrete & Masonry Waterproofer is not intended for surfaces with active leaks. Please repair the active leaks prior to application. 2. Is this siloxane sealer? The Concrete & Masonry Waterproofer is not a siloxane based sealer. This coating is a styrene acrylic water-based waterpoofer. 3. How long does this last? The Concrete & Masonry Waterproofer is designed to protect wall surfaces up to 10 years guaranteed (when applied according to label instructions) 4. Will this seal any cracks in concrete or mortar? The Concrete & Masonry Waterproofer is designed to waterproof concrete and masonry surfaces. Proper surface prep is required such as use of fast setting hydraulic cement. Please refer to the label instructions for proper prep and application. With this, we recommend that you have your flashing looked at and it sounds like a water flow / runoff management problem. Hope this helps and best of luck with your project.
Answered by: Behr
Date published: 2015-09-20

does the basement - masonary paint cover stains?

Asked by: sebastian
It seemed to cover all the stains on my walls with a single coat.
Answered by: TopCat
Date published: 2015-09-20
  • y_2017, m_3, d_20, h_23CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_40
  • loc_, sid_203938799, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=BEST_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=POSITIVE_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 104ms
  • QUESTIONS, PRODUCT

Customer Reviews

1-gal. #BW-37 Mountain Moss Concrete and Masonry Waterproofer is rated 4.6 out of 5 by 31.
Rated 5 out of 5 by from Excellent substitute for pool paint! I recommend this product to anyone who is wanting to waterproof a concrete surface. I tried using an $80 gallon of pool paint and after applying two coats of the paint, letting the paint cure for several days, and filling the pond with water, the paint instantly began to chip and peel. Then I got the bright idea to use this this Behr paint(which is available in many colors) and it has held up beautifully. Also, it's only a fraction of the price per gallon compared to pool paint! Thanks to Home Depot and Behr!
Date published: 2014-06-10
Rated 5 out of 5 by from Easy This product was used to cover a cement floor. I used a roller brush, tray, and an extension handle for the roller. The 1 gallon easily covered a room about 14' X 10'. Did not have too much of a smell either!
Date published: 2014-02-11
Rated 5 out of 5 by from Great paint I purchased this to seal up foundation walls. They were not leaking water, I didn't want moisture to get behind the parge though. This caused a lot of spalling flaking in the past. The 870 went on real nice & I was surprised how well it covered with one coat, I use 2 as recommended. This really seals up the poured walls & I'm pleased with it. I use hydraulic cement & mortor so the wait time to paint is negligable. On outside foundation walls etc this really looks nice & quite a step up from acrylic latex in my opinion.
Date published: 2011-08-03
Rated 5 out of 5 by from goes on like paint This masonry sealer "goes on like paint" because it is. coverage was good, and with two coats both drywall and cement looked fully covered. Test of time has yet to be determined, but initial water protection has been excellent.
Date published: 2014-06-06
Rated 5 out of 5 by from This product was recommended by a Behr representive at Home Depot The product was applied with an airless sprayer and did a great job of covering and waterproofing my rear block wall fence. The viscosity is thick but sprayed just fine. I would buy and use the product again.
Date published: 2014-02-25
Rated 5 out of 5 by from THE Best Concrete Paint I used this on my basement floor and concrete stairway and i am super impressed. My basement had numerous layers of paint and some slight chipping/ cracking from seepage. Two coats of this paint made it look brand new and I love how well this covered the area - it was super easy. I would definitely recommend to anyone who needs to paint concrete or brick surfaces. [This review was collected as part of a promotion.]
Date published: 2015-04-23
Rated 5 out of 5 by from An incredible paint This is the best waterproofing paint EVER! We have a drainage issue and can't rectify it until spring, however, we decided to waterproof the inside of the basement walls. It worked perfectly! It is very thick(like mud) and you will need two coats--but, well worth it. No more water and no more musty odor! Thanks BEHR for this great product!
Date published: 2014-03-24
Rated 4 out of 5 by from Color may not match internet image I have yet to apply paint; so I'm unable to comment on the quality of the product; though Behr has a pretty good track record. My suggestion to anyone considering purchasing paint through homedepot.com would be to go to the store to get color swatches first, as the internet image is not true to color and paint is a NON-REFUNDABLE item. In my case, my local Home Depot did not have color swatches/brochures, for this specific product, on hand at the store; so I went directly to Behr, who was kind enough to mail them to me. Received them in a few days and I'm glad I did, because the brochure was dramatically different than the internet image, in terms of color. The brochure was an almost exact match with the delivered product. "An ounce of prevention......"
Date published: 2016-07-19
  • y_2017, m_3, d_20, h_17
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_31
  • loc_, sid_203938799, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 153ms
  • REVIEWS, PRODUCT