Custom Building Products Complete Contact White 50 lb. Large Format Rapid Setting Tile MortarFormulated with Controlled Cure Technology, it cures rapidly developing high early and final strength for quick installations can be grouted in 2 4 hours and can withstand heavy commercial traffic 24 hours after grouting Can be used in thin bed as well as medium bed applications with all types and sizes of tile up 3 4 in. Offers full mortar transfer to the back of the tile eliminating the need for back buttering or beating in techniques Exceeds ANSI