Custom® CTTSG1-2 SimpleSet® Pre-Mixed Thin-Set Mortar, Gray, 1 GallonA no mix, no mess alternative to traditional thin set mortars spreads quickly and easily. Recommended to bond porcelain, stone, marble, granite and ceramic or porcelain tile up to 8" x 8" (20 x 20 cm). Can be used with tile up to 18" x 18" (45 cm x 45 cm), but dry time significantly increases. Protected by moldgard technology to resist mold & mildew growth. 1 Gallon Gray Ready to use No mixing, no mess Just spread and set. Suitable Tile Types: