Ready to use product bonds and grouts ceramic floor and wall tile. Bonds to concrete, plaster, drywall, cement backerboards, exterior grade plywood. For interior use only. Do not use on shower floors or areas exposed to prolonged water exposure or steam. Do not use to install fixtures, stone tile, porcelain, Staltillo pavers, or glass tile. As an adhesive use flat side of trowel and apply skim, immediately followed with additional adhesive using notched side of trowel. Let dry 24 to 48 hours before grouting. As a grout, apply with rubber grout float. Let dry 24 hours. Protected with MoldGard Technology to resist mold and mildew growth. Clean tools and hands with water before material dries. If haze exists on tile, remove it with TileLab grout and tile cleaner. Coverage as an adhesive: 50 to 60 sq. ft. per gallon using 3/16" x 5/32" V notch trowel. 40 to 50 sq. ft. using a 1/4" x 1/4" x 1/4" square notch trowel. Coverage as a grout: Wall tile; 16 to 24 sq. ft. per gallon: Floor tile; 12 to 20 sq. ft. per gallon.