Custom Building Products MegaLite 30 lb. White Rapid Setting Crack Prevention MortarFast curing Grout in 3 hours, open for traffic in 4 hours Unsurpassed bond strength and flexibility Non slump for floors; sag and slip resistant for walls Lightweight 30 lbs. covers the same area as 50 lbs. of traditional mortar Formulated with recycled material contributes to LEED certification Exceeds ANSI A118. 4, A118. 15 and A118. 11 without the need for additives California residents Features Flooring Type