RCU-400: 10mm Rubber Cork Underlayment (Glue Down)

Home E Products E Sound Control E Tile and Wood Sound Control E RCU-400 10 mm – Advanced Composite Sound Control Underlayment

PROFLEX® RCU-400 membrane, when properly installed in accordance with the following installation guidelines, will provide years of protection for finish flooring installations. In addition to these instructions, installers shall also refer to the most current edition of the following publications: American National Standards Institute (ANSI) publications, Tile Council of North America (TCNA) Handbook for
Ceramic Tile Installations, The Marble Institute of America (MIA) Dimension Stone Design Manual, NWFA (National Wood Flooring Association). Manufacturer’s instructions of selected setting materials, substrates, sub-floors, or other manufacturers being used in the total, or any part of, an installed flooring system with PROFLEX® consult your selected manufacturer of these above mentioned
components to ensure selected products are compatible with PROFLEX® RCU membrane.


  • Blended rubber & cork composite; superior bond strength to 100% rubber products
  • Suitable for tile and wood installations
  • Green product; qualifies for LEED points
  • Easy to install in the direct bond method
Sound Ratings

STC (Sound Transmission Class) as tested to ASTM E90-04 / E413-04

IIC (Impact Insulation Class) as test to ASTM E492-04 / E989-06

Delta IIC (Increase in Impact Insulation Class) ASTM E2179-03

Thickness: RCU-400                  

Substrate Description: 6” concrete slab / no ceiling assembly / Direct Bond to Quarry Tile


IIC: 50

ΔIIC: 21


4′ x 15′ = 60 sq. ft. per Roll


102 lb. Rolls
16 Rolls per Pallet

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