USG DUROCK Liquid Waterproofing Membrane 1 Gallon (2 Pack)

Liquid-applied waterproofing and crack isolation membrane and vapor retarder Durock Brand Liquid Waterproofing and Crack Isolation Membrane is ideal for waterproofing showers and other wet areas, including continuous-use residential and commercial steam showers without additional vapor retarder. Durock Brand Liquid Waterproofing and Crack Isolation Membrane is an acrylic polymer based product for both commercial and residential tile and stone applications. Suitable substrates include concrete, masonry, cement backerboard, gypsum-fiber panel and gypsum-based cement topping.MAIN FEATURESAvailable in 1-gallon and 3.5 gallon pails.Anti-fracture protection up to 1/8 in. (3mm) over shrinkage and other non-structural cracksCan be rolled, brushed, troweled, and sprayedFast drying time allows for quick turnaround timeLow Permeance Rating (0.38perms at 20mil dry thickness) per ASTM E96 Procedure ECan be used in steam room/shower without additional vapor retarderBonds directly to stainless steel, PVC, and ABS drainsOne coat on vertical surfaces for smooth substrates such as Fiberock Brand Tile BackerboardTwo coats on rough substrates such as Durock Brand Cement Board, and for all horizontal applicationsSuitable for waterproofing floors, walls and countertops