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.
Waterproof interior, exterior, above or below grade walls including basements, retaining walls, and bare concrete swimming pools, foundations, and more. For fish ponds, we recommend using DRYLOK® Original.
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
Withstands cat 4 hurricane winds
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