DRYLOK® Extreme Masonry Waterproofer

DRYLOK® Extreme Masonry Waterproofer

If water is leaking through existing masonry or you need to protect new construction, DRYLOK® Extreme Masonry Waterproofer’s proprietary formula is GUARANTEED to stop water.

Unlike ordinary paint that simply adheres to a surface and can be forced off by incoming water pressure, DRYLOK® Extreme Masonry Waterproofer actually penetrates the pores in that surface, bonding to the masonry and creating an impenetrable barrier.

Quick Overview

Waterproof interior, exterior, above or below grade walls including basements, retaining walls, and bare concrete swimming pools, foundations, and more.

  • GUARANTEED to stop water – withstands 15 pounds of hydrostatic pressure (PSI), equivalent to a wall of water 33 feet high
  • Fully transferable 15 Year Warranty
  • Helps protect against radon gas penetration by reducing vapor transfer
  • Green Wise® Certified
  • Low-odor formula complies with all current VOC requirements
  • Breathable film will not trap moisture in the masonry
  • Easy cleanup with warm, soapy water

Product Features:

  • Tintable, bright white, smooth finish formula features Flexible Encapsulated Polymers for the ultimate in waterproof protection
  • Incorporation of a green biocide helps the dry paint film resist mildew growth
  • Sizes: quart, gallon, 5 gallon
  • Coverage: 75-100 square feet per gallon
  • No pre-mixing or pre-wetting
  • Application tools: brush or roller (preferred for first coat), sprayer
  • Dry time: 1-2 hours
  • Coats: minimum of 2 for Warranty Coverage to apply
  • Recoat time: 3 hours
  • After 24 hours, DRYLOK® will accept a decorative topcoat using a good quality latex paint

View DRYLOK® FAQ

Surfaces

  • Masonry walls
  • Brick
  • Stucco
  • Cinder and concrete blocks
  • Poured concrete

Ready-Mixed Colors

White White

Please note, colors are RGB web approximations of the actual shades.

Tints

Beige Beige
Blue Blue
Buttercup Buttercup
Gray Gray
Mint Green Mint Green
Platinum Platinum
Sand Sand
Slate Blue Slate Blue
Soft Pink Soft Pink

Please note, colors are RGB web approximations of the actual shades.

How To / Videos

How to use DRYLOK® Masonry Waterproofer to Reclaim Usable Space
How to Stop Water from Entering your Basement with DRYLOK® Masonry Waterproofer

See more Home Improvement Videos

Downloads

PRODUCT COMPARISON CHART PDF
BROCHURE PDF
DATA SHEET PDF
SDS SHEET PDF

Graco® Magnum® Pro X9

SPRAY SPECS PDF

D-98 / Graco® Ultra 1095 / GMAX 3900

SPRAY SPECS PDF

Graco® Magnum® Pro LTS 19

SPRAY SPECS PDF

Preparation

DRYLOK® Extreme Masonry Waterproofer may be applied on a slightly damp surface, but best results are obtained when the surface is dry, clean and free of grease, oil, form-release compound, and paint. Remove dust, dirt, and any loose or broken mortar with a wire brush. Old paint in poor condition should be removed by wire-brushing, sandblasting or other suitable methods.* If you see white, powdery, crystal-like deposits on the surface, they are naturally-occurring, water-soluble salt compounds in the masonry, pushed out by water intrusion. When the water evaporates, the salt residue remains. This effect is called efflorescence and, because it prevents DRYLOK® Extreme Masonry Waterproofer from properly bonding to the surface, it must be removed. Treat it with DRYLOK® Etch** (liquid or powder formula) or muriatic acid according to the manufacturer's directions, rinse, and allow the surface to dry. Since efflorescence occurs naturally, we cannot warrant against it reoccurring.

Patch all cracks and holes with DRYLOK® Fast Plug®. Wet the surface to be patched. Next, back chisel the areas to be patched in the shape of an inverted “V” so DRYLOK® Fast Plug® can better anchor into the wall. Apply and smooth the patch so it's even with the surface around it. As DRYLOK® Fast Plug® sets rapidly, mix only what you'll use in 3-5 minutes. Also, be sure to seal the area where the floor and wall meet. Often, when concrete floors cure, they shrink and pull away from the wall, creating a space where water can enter.

Application

Schedule your project when both air and surface temperatures are 50°F or higher and, for best results, wait for a dry (rain-free) period. Stir DRYLOK® Extreme Masonry Waterproofer thoroughly before and during application - do not thin. Apply the first coat to bare masonry with a three-quarter-inch nap roller, a DRYLOK® Brush or a quality nylon bristle brush. If using a brush, work the DRYLOK® Extreme Masonry Waterproofer into the pores of the masonry, making sure to fill all pores and pinholes. If using a roller, back brush the first coat to fill all pores and pinholes. Give the first coat three hours to dry, and then apply a second coat using a roller, brush, or sprayer (download our Spray Specs).

Proper coverage, a minimum of 2 coats, is required to warranty waterproofing. After the second coat, carefully inspect the entire surface for pinholes. Give these areas an additional coat. If leaking is still present after 2 coats, it indicates that pores or pinholes are still open. Paint these areas again. When painting the inside of concrete fish ponds and non-potable water tanks, allow DRYLOK® Extreme Masonry Waterproofer to dry for at least 1 week, then fill with water.

Disposal

Dispose of contaminated absorbent, container and unused contents in accordance with local, state and federal regulations.

15 Year Warranty

LIMITED WARRANTY
United Gilsonite Laboratories (UGL®) warrants DRYLOK® Extreme Masonry Waterproofer, when applied according to directions on a properly prepared bare masonry surface, will provide a waterproof coating for fifteen (15) years from the date of application, warranty includes subsequent owners. There are no other warranties that extend beyond this warranty. This warranty shall not apply when the waterproofer fails due to improper product application, failure to follow label directions, inadequate surface preparation, cracked structural surfaces, reoccurring efflorescence or any conditions not foreseen by UGL. Two coats of DRYLOK® Extreme Waterproofer are required to ensure warranted waterproofing. Label directions are as complete as possible, but cannot encompass all conditions, applications and/or surfaces. In the event that the coating fails, your remedy is limited to either replacement of the product purchased or refund of the purchase price. This is the exclusive remedy. For warranty fulfillment, return used product container and sales receipt to UGL, Technical Customer Service, 1396 Jefferson Ave., Dunmore, PA, 18509. THIS LIMITED WARRANTY EXCLUDES ALL OTHER EXPRESS OR IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. UGL will in no event be liable for any incidental or consequential damages. Some States do not allow limitations on how long an implied warranty lasts or the exclusion or limitations of incidental or consequential damages, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from State to State.

USAGE STATEMENT: Prior to use, carefully read the product label and follow the directions. For technical information, warnings, cautions, notices, and additional information, download and read the documentation available on this website.

* WARNING: If you scrape, sand or remove old paint, you may release lead dust. LEAD IS TOXIC. EXPOSURE TO LEAD DUST CAN CAUSE SERIOUS ILLNESS, SUCH AS BRAIN DAMAGE, ESPECIALLY IN CHILDREN. PREGNANT WOMEN SHOULD ALSO AVOID EXPOSURE. Wear a NIOSH-approved respirator to control lead exposure. Clean up carefully with a HEPA vacuum and a wet mop. Before you start, find out how to protect yourself and your family by contacting the National Lead Information Hotline at 1-800-424-LEAD or visit www.epa.gov/lead.

** When using DRYLOK® Etch®, wear eye protection with side shields, chemical-resistant gloves, protective footwear and suitable clothing.