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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Customer Questions & Answers

29 Questions34 Answers

Customer Questions & Answers

Extreme 1 gal. Masonry Waterproofer
Extreme 1 gal. Masonry Waterproofer

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3 answers

can i apply to a wet wall

This question is from Extreme 1 gal. Masonry Waterproofer
Asked by
st. louis,mo
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December 14, 2015
when it rain the basement has water enerting through the walls, and floor
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Answers (3)

Asked by
Richmond, Va
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Home Improvement Profile: DIYer
October 11, 2016
Answer: 
Yes, just the walls, a Very Slow leak
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Asked by
Scranton, PA
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June 1, 2016
Answer: 
You can apply to a slightly damp surface, not a wet surface. Try this test, rub your fingers on the surface of the masonry; if your fingers a glistening with water it is too wet to paint. If you don't have water on your fingers it is ok to paint.
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Asked by
Pittsburgh, PA
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December 27, 2015
Answer: 
Drylok adheres better to dry walls. Try to be patient and wait for an extended period without rain and then apply two coats of Drylok. You will be rewarded for waiting for a dry spell.
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2 answers

Can I use this as a general waterproof layer.

This question is from Extreme 1 gal. Masonry Waterproofer
Asked by
Minneapolis MN
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July 11, 2016
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?
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Asked by
Scranton, PA
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July 14, 2016
Answer: 
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.
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July 12, 2016
Answer: 
This item can be used.
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2 answers

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

This question is from Extreme 1 gal. Masonry Waterproofer
Asked by
Alexandria, VA
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May 2, 2016
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)
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Asked by
Scranton, PA
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May 9, 2016
Answer: 
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.
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May 3, 2016
Answer: 
Yes, this can be applied to an exterior foundation wall.
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2 answers

does drylok have to cover entire wall?

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Asked by
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December 1, 2015
I have a localized leak in basement wall where there is a crack. can I just cover an area generously around the crack or do I have to do the whole wall?
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Asked by
Scranton, PA
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June 1, 2016
Answer: 
Yes, water will find the point of least resistance. Therefore if you only paint one section of the wall, the water will travel along the soil and move to the area unpainted.
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Asked by
Pittsburgh, PA
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December 27, 2015
Answer: 
You should probably cover all areas of the wall (two coats are recommended) that are below grade. Water and moisture will leak through block walls even if they are not cracked.
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Customer Reviews

Extreme 1 gal. Masonry Waterproofer is rated 4.0 out of 5 by 17.
Rated 4 out of 5 by from DryLok Paint, Good I have used DryLok paint for many years now. My basement has a two walls that get a little seepage. Unfortunately, this paint lasts...on my walls anyway....about 3 years, and then I have to do it over. So, I do scrape and paint over any seepage areas, sometimes adding a little hydraulic cement first. As far as looks, after painting, it looks very neat and clean. As far as keeping the walls 100% dry, I think it all depends on the amount of moisture you're dealing with and how much work you're willing to put into it every few years. The odor is noticeable when painting so if you are sensitive, I suggest putting on a big floor fan while painting, which is what I do. It not only helps keeps air flowing and odor down to a minimum, it dries the paint quickly. I gave the paint a "Good" rating only because it's not perfect, it doesn't keep moisture out "forever", it does have an odor, it is thick and takes some work and elbow grease to put on walls, but paint tools do clean up easily with soap and water. I suggest painting in the warm weather, you can wash all paint brushes and rollers outside with garden hose. Good Luck!
Date published: 2016-08-11
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 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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