Firm Fill Gypsum Concrete Underlayment

Meets astm f2419 standard practice for the installation of thick poured gypsum concretes and preparation of the surface to receive resilient flooring. The original firm fill gypsum concrete floor underlayment is designed for use in multi family housing to satisfy acoustical ratings and fire codes. Firm fill 2010 floor underlayment has approvals from icc es and hud.

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