PRODUCT DETAILS Order By Product Code Order By Product Name Order By Newest FIRM-FILL Gypsum Concrete The original FIRM-FILL Gypsum Concrete floor underlayment is designed for use in multi-family housing to satisfy acoustical ratings and fire codes. With excellent STC and IIC ratings as well as over 100 UL listings, Product Code 001M000892 Company Name Hacker Industries Inc Country of Manufacture Price Get Latest Price UOM Each SKU ID 1462B101 Quantity General Information FIRM-FILL Gypsum Concrete floor underlayment is an excellent choice for jobs needing compressive strengths up to 2000 psi. Return Policy Click here to enlarge Image Link SELECT GroupName: Product Images SKU: Description: Price: Display Notes: Stock Quantity: Sold in Multiples of(CasePack): Minimum Order Quantity: Enter Quantity: Product Description Features & Benefits: Flattens subfloors Provides excellent STC (sound transmission) and IIC (impact isolation) ratings Possesses over 100 UL listings Lightweight and crack resistant Easily installed; over 25,000 square feet can be installed per day Quick drying; can be walked on in 90 minutes Expert application; installed only by trained, Licensed Applicators Approvals from ICC-ES and HUD Meets ASTM F2419, Standard Practice for the Installation of Thick Poured Gypsum Concrete Underlayments and the Preparation of the Surface to Receive Resilient Flooring