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CGC Unveils Quick-Drying Liquid Waterproofing Membrane for Seamless Application in Wet Areas

New CGC Durock™ Brand Liquid Waterproofing Membrane provides complete protection in a single step when rolled or sprayed over smooth vertical surfaces

MISSISSAUGA – August 8, 2017 – CGC Inc., a leading building materials manufacturer, unveils CGC Durock™ Brand Liquid Waterproofing Membrane, a durable and seamless application for use in commercial and residential tile and stone applications. CGC Durock™ Brand Liquid Waterproofing Membrane only requires a one-coat application when installed over smooth surfaces, and is suitable for wet areas from showers (including steam showers) to flooring assemblies to countertops.

With the waterproofing membranes market size estimated to surpass $10.5 billion USD by the end of 2024, the need for durable materials in construction for commercial and residential projects is growing. CGC Durock™ Brand Liquid Waterproofing Membrane is a strong polymer-based fluid application that is designed to be to be rolled, brushed, troweled or sprayed. This liquid membrane provides a sealed waterproof barrier in a single-step application when administered over vertical smooth surfaces or in a two-ply application when used on rough surfaces and all horizontal surfaces. Its fast-drying time allows for quick turnaround on the jobsite.

CGC Durock™ Brand Liquid Waterproofing Membrane has the lowest permeance rating (0.43 perms at 15 milliliters dry thickness) of any liquid waterproofing membrane when tested to ASTM E96, making it not only ideal for showers and other wet areas, but for continuous-use residential and commercial steam showers without an additional vapor retarder.

CGC Durock™ Brand Liquid Waterproofing Membrane complements the CGC Durock™ waterproofing membrane portfolio of products, which includes the CGC Durock™ Brand Waterproofing Membrane and Band (sheet membrane).

CGC Durock™ Brand Liquid Waterproofing Membrane

  • Provides strength and water resistance in liquid form.
  • Extremely durable, yet easy to handle and install, ideal for use in showers and other wet areas, including steam showers, floors, walls and countertops.
  • Low Permeance Rating (0.43 perms at 15 milliliters dry thickness) per ASTM E96 Procedure E.
  • Bonds directly to stainless steel, PVC and ABS drains.
  • One coat on vertical surfaces for smooth substrates such as CGC Fiberock® Tile Backerboard.
  • Two coats on rough substrates such as CGC Durock® Brand Cement Board, and for all horizontal applications.
  • Suitable for waterproofing floors, walls and countertops.

CGC Durock™ Brand Liquid Waterproofing Membrane is available nationwide through tile and flooring distributor channels. For additional more information, please visit

About CGC Inc.

CGC Inc. is a leading marketer, manufacturer and distributor of gypsum panels, joint compound, related gypsum products, ceiling tile and grid in Canada. Its major product lines include CGC Sheetrock® Brand Gypsum Panels, CGC Fiberock® Brand fibre-reinforced gypsum panels, CGC Durock® Brand cement board and CGC Donn® Brand ceiling suspension systems. CGC Inc. is a wholly owned subsidiary of USG Corporation, the leading drywall manufacturer in North America and a world leader in suspended acoustical ceilings. For more information, visit