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Self-leveling underlayments boast compressive strength
USG's Tile and Flooring Division has introduced two poured, self-leveling cement underlayments, plus an accompanying floor patch and primer-sealer, all under the Durock brand name.
Both of the new underlayments utilize a uniquely engineered cement chemistry offering high compressive strengths, outstanding performance and unrivaled versatility. These self-leveling underlayments come pre-sanded in a bag, mix easily at the job site and can be applied in a wide range of commercial, institutional and residential flooring applications. They are available nationally through tile and flooring distributors.
Durock brand Multi-Use self-leveling underlayment is a high-quality, economical floor underlayment designed to smooth wood and concrete floors in wood frame, renovation and light-commercial construction. Because it sets rapidly, the product facilitates the return of light trade traffic within a few hours. It can be applied easily from 3/4 inch to 3 inches thick over both wood and concrete subfloors. The product achieves compressive strength of 3,500 psi within seven to 10 days.
Durock brand Quick Dry self-leveling underlayment is a cementitious underlayment developed for use in commercial, institutional and rehab construction. With compressive strengths of 5,000 psi to 6,000 psi, it provides a smooth, hard surface at thicknesses ranging from featheredge to 3 inches. The underlayment’s patented technology minimizes downtime. Floor coverings can be installed within 15 hours after the underlayment has been poured. Self-sealing technology eliminates the need to seal the underlayment prior to application of the finished floor adhesive.
Durock brand floor patch is a polymer-modified blend of engineered cements designed to patch a variety of wood, concrete and gypsum-based floor underlayments. Self-drying and fast setting, the material mixes easily with water and can be applied at thicknesses from featheredge to 1/2 inch. Fast drying times permit floor coverings to be applied within 20 minutes of the patching application.
Durock brand primer-sealer was developed to prime and seal porous concrete, precast concrete and wood subfloors prior to applying Durock Multi-Use or Quick Dry underlayment. It also can be used as a sealer on the surface of dry Durock Multi-Use underlayment before the floor-covering adhesive is applied. The primer-sealer reduces the alkalinity of concrete floor surfaces without negatively impacting the floor-covering adhesive, and it enhances bonding between the adhesive and underlayment. The product resists mildew and will not stain finished floors.
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