Ready Mixed, Solvent-Free Acrylic Primer especially suitable as a primer for calcium sulfate based substrates (gypsum) as well as to bind residual dust and improve adhesion prior to installing luxury vinyl tiles (LVT) on suitable substrates using the Schönox ROLL and GO™ adhesive. Coverage: Approx 300 – 500 sq. ft. per unit of 1.3 gallons on strong absorbent and gypsum substrates Approx 1,300 – 1,400 sq. ft. per unit of 1.3 gallons when used as a primer with Schönox Roll and Go™ adhesive (using the Schönox KH Fix Roller) Approx 540 sq ft per 2 units of .25 gallons when used as a primer as part of the Schönox Roll and Go™ Set (units are included in the set) Drying Time: Approx 10 minutes on cement based substrates Approx 30 – 60 minutes on water resistant, calcium sulfate substrates and Schönox AP Approx 60 minutes on water resistant, gypsum plaster Approx 10 minutes on gypsum board Approx 60 minutes on old, water resistant adhesive residues Approx 60 minutes on particleboard, OSB board Working Temperature: Not below 59°F floor temperature