USG Durock™ Brand Liquid Waterproofing and Crack Isolation Membrane

Liquid-applied waterproofing and crack isolation membrane and vapor retarder

USG 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.

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features and benefits

USG 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. Available in 1-gallon and 3.5 gallon pails, USG Durock™ Brand Liquid Waterproofing and Crack Isolation Membrane:

  • Anti-fracture protection up to 1/8 in. (3mm) over shrinkage and other non-structural cracks
  • Can be rolled, brushed, troweled, and sprayed
  • Fast drying time allows for quick turnaround time
  • Low Permeance Rating (0.43 perms at 15 mil dry thickness) per ASTM E96 Procedure E
  • Can be used in steam room/shower without additional vapor retarder
  • Bonds directly to stainless steel, PVC, and ABS drains
  • One coat on vertical surfaces for smooth substrates such as USG Fiberock® Brand Tile Backerboard
  • Two coats on rough substrates such as USG Durock® Brand Cement Board, and for all horizontal applications
  • Suitable for waterproofing floors, walls and countertops

Customer Service Center
1-800-950-3839
7 a.m. - 6 p.m. CT, Mon - Fri

USG4YOU Tech Support
1-800-USG4YOU (1-800-874-4968)
7:30 a.m. - 4 p.m. CT, Mon - Fri

Email USG Technical Support

Design & Specification
Assistance
Find your local architectural representative