Formulated for installing gauged or ungauged natural stone, tile 12″ x 12″ or larger, clay pavers, or any installation requiring a medium bed mortar. It’s nonslumping formula eliminates slippage, saving time and labor by minimizing the need for leveling tile. Excellent sag and slip resistance, wall tiles are held in place immediately. It can be applied up to 3/4″ thick on horizontal applications or used in thin-bed applications as thin as 1/8″. White formulation improves installation of light colored marble. This polymer-modified mortar exceeds ANSI A118.4 and A118.11 requirements without the need for additives. Protected by MoldGuard technology to resist mold and mildew growth. Can be used on tile types: Vitreous, semi-vitreous, or absorptive tile, ceramic, quarry, pavers cement, porcelain, brick and mini-brick, precast terrazzo, natural stone tile (gauged or ungauged). Areas of use: Interior or exterior floors, countertops, walls, wonderboard, cement backer boards, exterior grade plywood, gypsum wallboard (dry areas), water-resistant wallboard, existing ceramic tile, sheet vinyl flooring, VCT tile, plastic laminates, cutback adhesive. Coverage: 63 – 70 sq. ft. per 50 lb. applied with a 1/4″ x 3/8″ x 1/4″ square-notch trowel, 45 – 50 sq. ft. per 50 lb. applied with a 1/2″ x 1/2″ x 1/2″ square-notch trowel, 36 – 40 sq. ft. per 50 lb. applied with a 3/4″ x 9/16″ x 3/8″ U-notch trowel. White.