SpeedFinish Patching Finishing Compound Fast curing, cement-based patching and skim coating compound that provides a smooth finish to a variety of substrates prior to the installation of floor coverings. Install most floor coverings in as little as 15 minutes. Excellent as an embossed vinyl floor leveler. Apply from featheredge to 1/2 In. thick. SpeedFinish eliminates installation problems of bond failure, crumbling, mildew, and staining of resilient flooring due to free moisture found in traditional underlayments. Apply over concrete, cement backer boards, RedGard Waterproofing Anti-fracture Membrane, exterior grade plywood interior applications , ceramic tile, pavers, brick, stone, concrete terrazzo, sheet vinyl, VCT tile, and cutback adhesive nonwater soluable . Do not use over OSB, particle board, hardwood, parquet floors, metal, cushion-backed vinyl flooring, or when temperature is below 50 deg. F. 10 deg. C. . Coverage As a skim coat, approximately 250 to 300 Sq. Ft.; 10 Lb. box yields 30 Sq. Ft. at 1/8 In. thickness. Mix with water. Clean with water before material dries. 10 lb. box. Powder-light gray to white. Combine 10 Lb. 4.54 kg box of Powder to 2.5 quarts 2.37 L to clean water or 2 parts powder to 1 part water. Container Size 10 Lbs., Color Gray To White, Formulation Portland Cement, Color Family Whites, Dry Time 15 To 30 Mins., Approx. Coverage 250 To 300 Sq. Ft., Interior/Exterior Interior, Clean-Up Water, Shelf Life 1 Yr., Pkg Qty 1, Package Type Box WARNING Cancer and Reproductive Harm www.P65Warnings.ca.gov