UGL DRYLOK 21913 Masonry Waterproofer, Liquid, Gray

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.