Model # 28613

Internet #202610894

Store SKU #524702

DRYLOK Extreme 1 gal. Masonry Waterproofer
0079941286132

DRYLOK

Extreme 1 gal. Masonry Waterproofer

$29.98 /each

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Product Overview

Keep moisture out of masonry work with this DRYLOK Extreme 1 gal. Masonry Waterproofer. It provides a white finish with a smooth texture and can withstand up to 12 lb. of hydrostatic pressure, which is equivalent to a 26 ft. high wall of water. For added convenience, it is mildew resistant.

California residents: see   Proposition 65 information

  • Covers up to 100 sq. ft.
  • Provides a smooth, white finish
  • Mildew resistant
  • Withstands up to 12 psi of pressure
  • Dries to the touch in 2 hours
  • 2 coats recommended
  • 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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Warranty / Certifications

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Customer Questions & Answers

can i apply to a wet wall

when it rain the basement has water enerting through the walls, and floor
Asked by: 030719645
Yes, just the walls, a Very Slow leak
Answered by: Woody
Date published: 2016-10-12

Will this product dry to a smooth finish. Not sanded

Asked by: Jy15
DRYLOK Extreme Masonry Waterproofer has a smooth, bright white finish. The DRYLOK Latex Masonry Waterproofer has a sandy rough texture.
Answered by: UGL
Date published: 2016-12-30

Can I use this as a general waterproof layer.

Can I use this as a layer on a concrete floor that I will carpet over in a basement as an extra layer to help keep the carpet dryer?
Asked by: Kenai4
Yes, you can use on floors if you are going to cover it. DRYLOK's resin is not strong enough to hold up to foot traffic, but if you are covering, it is not directly exposed to abrasion. The warranty will not be extended to floor use, but you can use it. UGL does make a DRYLOK Clear Masonry Waterproofer designed especially for floors.
Answered by: UGL
Date published: 2016-10-16

Can this be applied to an EXTERIOR foundation wall that will be 8' below grade #new egress window escavation#

WE have installed a new egress window and excavated to the drain tile for the new drainage from the basin. Can I use this as a waterproofer on the concrete foundation that will be backfilled and below grade? Must this be used with a waterproofing membrane or can it be used without one? (no existing cracks, poured foundation - not block)
Asked by: Dan
You can use DRYLOK Masonry Waterproofer on the foundation before backfilling. We do suggest you protect the painted surface with a foam or plastic sheet just to protect from rocks chipping the surface when you backfill. Any chipping or cracking when backfilling will effect the product performance.
Answered by: UGL
Date published: 2016-10-16
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Customer Reviews

Extreme 1 gal. Masonry Waterproofer is rated 3.9 out of 5 by 17.
Rated 5 out of 5 by from Interesting stuff Basement wall had a pronounced crack that leaked despite a cement patch. Slathered on two coats of Drylok Extreme and the problem is gone. The Extreme is much runnier than the regular flavor and goes on well with a roller; the regular stuff is like vanilla frosting and seems to require a brush to apply. Both seem to do the job; the basement is dry, I did it all myself and I'm happy.
Date published: 2013-08-29
Rated 1 out of 5 by from Leaked like a sieve on concrete garage walls that are barely underground during spring meltdown of just a little snow Leaked horribly despite proper prep and application during the spring meltdown. Wasn't much snow and walls barely underground. Customer Service is very hard to get a hold of and unprofessional demeanors. Not impressed with product or company or customer service. Don't buy. Doesn't work at all.
Date published: 2016-04-05
Rated 5 out of 5 by from Excellent product When removing paneling from a finished basement of a home we purchased in 2012, we discovered water infiltration sufficient enough to rot framing attached to the block wall. We removed the framing and applied two coats of Drylok Extreme. We left the wall unfinished for two years to make sure the dampness did not return. The basement has been bone dry since application – unbelievable product! We would definitely use this product again – very satisfied customers.
Date published: 2015-12-27
Rated 5 out of 5 by from best product for price i first used a hydraulic cement to stop any seepage into the foundation. and then applied the product. it has worked wonders for me. but i consider it a moisture proofing rather than a water proofing. I also spray foamed the box sills above the foundation which only help make my basement as nice and dry as upper level.
Date published: 2016-03-24
Rated 5 out of 5 by from Loved it! Worth the money. Does what it promises. Plan on buying for for other locations in the house. Used inside and out.
Date published: 2012-12-18
Rated 1 out of 5 by from Stay away if you are chemically sensitive. DO NOT USEOVER EXISTING PAINT! We purchased Dry Lock Extreem 2.5 months ago. The warning label on the can is not very large and should be a different color of text. You are not suppose to use this product over existing paint. We used it over the top of 25 year old standard DryLock paint. Big Mistake. It has been 2.5 months and my wife is being driven crazy by the odor. When we called to get an answer we were never called back. We have to leave the basement windows open during the day. Winter is almost here now and we don't know what to do. The smell is all through the house. We tried sealing the odor in with a coat of latex paint. That did not help. If your going to use this stuff, make sure you can ventilate your basement well.
Date published: 2015-10-03
Rated 5 out of 5 by from Fixed leaking concrete fountain My wife's concrete decorative fountain in the front yard started leaking water. We had to fill it back up every 2 days. I went to Home Depot and bought a quart of this product. Painted the whole inside of the fountain. Waited 24 hours and filled it with water. No more leaks. The fountain holds water with zero leaks. It's been 3 months and it still works perfect. I'm happy cause the wife is happy! Would definitely recommend
Date published: 2015-07-14
Rated 5 out of 5 by from WORKS!!! My house is 89 yrs old. When we used this 29 yrs ago it worked great. Just getting around to using it again, it does wear away after many years. Keeps water out and looks bright and clean. Does the job!
Date published: 2013-09-04
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