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Thickness
3/4" (19mm) (minimum over wood) to 3 1/2" (89mm)
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Technical Data
Properties
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Weight
7.2 lbs/ft2 at 3/4" (19 mm)
FIRM-FILL 3310+, a premium poured floor underlayment from Hacker Industries, Inc., delivers best in class performance with compressive strengths from 3000-3900 psi. Ideal over wood or concrete subfloors in multi-family, hospitality, and renovation projects, FIRM-FILL 3310+ maximizes sound control and creates an enhanced surface for finished floor coverings. - See more at: http:www.hackerindustries.comproducts.shtml#sthash.De6ZFxin.dpuf