A premium floor and wall dry-set mortar with outstanding bond strength. Designed for interior and exterior floor and wall installations of vitreous, semi-vitreous and non-vitreous ceramic tiles, ceramic mosaics, quarry tiles, pavers, and natural stone tiles. This special blend of Portland cement, select inert fillers and advanced chemical additives results in a mortar with excellent sag resistance and adjustability. For installation in freeze/thaw environments or with special substrates. Meets ANSI A118.1 requirements. 22.7 kg.