Poured cementitious flooring underlayments allow light-trade traffic to return within hours of pouring, deliver exceptional compressive strength, sound control and fire-resistance
Can be applied directly to concrete surfaces without the need to shot-blast, scarify or any other method of surface profiling

– Offers the highest compressive strengths in its class (2000 to 3200 psi)
– Durable enough to pour before drywall
– Fast application, fast-setting allows for return of light trade traffic within hours
– Ideal for wood-frame and multi-family construction
– UL designs available up to 2-hour fire rating
– Smooth, crack-resistant surface
– Helps maximize sound isolation between floors/units
– May assist in obtaining LEED® credits

– Compressive strengths from 3500 to 4500 psi
– Fast application, fast-setting allows for return of light trade traffic within hours
– Ideal for wood frame, renovation, hotel/motel and light-commercial construction
– Ideal for renovating concrete subfloors—can be applied at various thicknesses
– Meets vinyl industry commercial performance requirements
– UL designs available up to 2-hour fire rating
– Smooth, crack-resistant surface
– May assist in obtaining LEED® credits

– Compressive strengths of 4500 – 5500 psi
– Provide a smooth, hard surface over concrete slabs, pre-stressed concrete and coreslab
– Innovative, self-sealing technology
– Fast application, fast-setting allows for return of light trade traffic within hours
– High compressive strength—stands up to commercial and institutional use
– Ideal for renovating concrete subfloors—can be applied at various thicknesses
– Meets the criteria of ASTM E136-04 for use in all types of non-combustible construction

– Compressive strength: 2500-3200psi
– Formulated for electric and hot water radiant heat floor installations in residential and light-commercial construction
– Non-shrinking to lock radiant heat tubing in place and prevents noise and tube chafing
– Prevents the high temperature of radiant heat systems from breaking down the floor matrix
– Helps maximize sound isolation between floors/units
– Fast application, fast-setting allows for return of light trade traffic within hours
– Smooth, crack-resistant surface
– LevelrockRH Green floor underlayment may assist in obtaining LEED® credits

-Compressive strength range of 3500-5000 psi
– Unique all-in-one floor underlayment and wear surface product
− Hybrid cementitious formula can be used as a traditional underlayment with wear surface qualities equal to concrete
− Ideal for wood frame, radiant heat (RH), corrugated steel deck, pre-cast concrete or concrete applications
− Smooth, crack-resistant surface
− Meets vinyl industry commercial performance requirements
− Classified as to fire resistance and non-combustibility

– Specifically designed for use as a non-structural underlayment in corrugated steel deck systems
– Compressive strength: 3500-4000 psi.
– May be applied at a much lower thickness than poured-in-place concrete, reducing dead load and brallowing a greater number of floors for increase rentable/sellable square footage
– Up to 55% lighter than 3” concrete
– Allows trade traffic the next day vs. 7-10 days for conventional poured concrete
– Classified as to fire resistance and non-combustibility
– May assist in obtaining LEED® credits

– Compressive Strength 4100 psi at 28 days
– Fast application, fast setting allows for return of light traffic within hours
– No shotblasting / grinding required
– Ideal for wood frame, renovation and light-commercial construction
– Ideal topping for radiant heat installations
– Meets resilient floor industry specifications for underlayment for commercial goods
– Exceptionally smooth, crack-resistant surface

– Compressive Strength 7000–10,000 psi
– Premium poured underlayment product with self-drying technology
– Allows for application of floor covering 15 hours after underlayment application
– Minimizes downtime for commercial and institutional repair and renovation
– Suitable for a variety of floor coverings
– Can be used as a finished floor with an appropriate coating system
– Self-sealing technology
– No shotblasting /grinding required

– Compressive strength—minimum 6000 psi
– Ideal for commercial, institutional and renovation construction
– Can be used as a decorative wear surface
– Fast application and setting times facilitate return of light trade traffic within hours
– Self-leveling system speeds production and provides a smooth, crack-resistant surface
– Nonshrinking technology
– No shotblasting/grinding required

-Compressive Strength 5000 minimum psi at 28 days
– Portland cement-based poured underlayment
– Fast application: fast setting allows for quick return of normal trade traffic
– Smooth, crack-resistant surface
– Meets requirements of ASTM F-710 Standard Practice for Preparing Concrete Floors to Receive Resilient Flooring
– May assist in obtaining LEED® credits

-Minimum compressive strength of 5250 psi after 28 days
– High-alumina, cement-based poured underlayment
– Fast application: fast setting allows for quick return of normal trade traffic
– Smooth, crack-resistant surface
– Meets requirements of ASTM F-710 Standard Practice for Preparing Concrete Floors to Receive Resilient Flooring
– Designed for fast track installations
– May assist in obtaining LEED® credits

– Compressive Strength 5000 psi1 at 28 days, 6000 psi1 at 56 days
– Innovative cementitious poured underlayment, next generation technology
– Environmentally sustainable-high recycled content, low embodied energy, low carbon footprint
– May assist in obtaining LEED® credits
– Self-drying and rapid-setting – open to light foot traffic in approximately four hours
– Superior crack resistance due to low shrinkage, superior thermal stability and tenacious bond
– Easy mixing; featheredge to 2 in. thick; extendable to 5 in. with aggregate
– Installation of ceramic tile and natural stone in four hours; other floor coverings in 16 hours
– Low surface pH provides enhanced compatibility with floor-covering adhesives USG

– STC and IIC values help meet or exceed code requirements for sound attenuation
– Can be used over a variety of subfloors
– Robinson tested for system durability
– May contribute towards LEED® credits
– Installed by USG Levelrockauthorized applicators

– Versatile, trowelablecementitious underlayment
– Ideal over concrete, gypsum, metal and wood subfloors and most interior floors, including tile
– Innovative formulation offers significant yield advantage vs. competitive products
– No priming necessary over most surfaces
– Featheredge to 1/2 in. thick in most large areas, up to 1 in. thick in thresholds and concave shapeddepressions in substrates
– Easy mixing

Levelrock™ Acrylic Concrete Primer is a high-solids sealant that enhances the bond between substrate and underlayment. Concrete Primer is a versatile, low odor primer that can be used as a:
– Primer for concrete subfloors prior to installation Levelrock® Floor Underlayments
– Sealer for dry USG Levelrock® Brand Floor Underlayments prior to application of floor-covering adhesives

USG Durock™ Brand X2 Primer-Sealer is an aqueous emulsion of proprietary polymers designed for interior use over USG Levelrock® and USG Durock™ gypsum underlayments. The ready-mix formula may also be used for priming concrete or wood subfloors prior to application of USG Levelrock and USG Durock™ gypsum underlayments and USG Durock™ self-leveling underlayments. USG Durock™ X2 Primer-Sealer:
– Has a 10-year limited system warranty when using USG Durock™ X2 primer-sealer, a USG Levelrock or USG Durock™ gypsum underlayment and a XL Brands® manufactured adhesive
– Is approved for use in occupied spaces, healthcare facilities, food service areas and other spaces where indoor air quality may be of concern
– Is alkali- and water-resistant; formula also protects underlayments against dusting
– Is Carpet & Rug Institute (CRI™) Green Label Plus approved and FloorScore® certified
Contains XL Brands® MicroSept™ Antimicrobial System for exceptional resistance to mold and bacteria VOC content is compliant with California SCAQMD Rule 1168