This no-mix, no mess alternative to traditional thin-set mortars spreads quickly and easilyBonds porcelain, stone, marble, granite and ceramicTile up to 18" x 18" (45cm x 45cm)For interior wall and floor installationsProtected by Moldguard technology to resist mold and mildew growthExceeds ANSI A136.1 Type ITubGrayQuart Part of a new program of pre-mixed tile setting products