Is Gypsum Really Stronger Than Concrete? Hacker Gypcrete
Gypcrete is not as apt to crack and cause floor failures. The original Hacker Industries brand FIRM-FILL® Gypsum Concrete floor underlayment is Think gypsum underlayments are weak or slow to dry? Think again. See how far gypsum has come; it's not just for drywall and Cementitious Underlayments. We are a fully licensed applicator of Hacker Industries Gypcrete Products (3310 Firm Fill, Gyp Span Radiant, etc) ...