Applied in thickness from 1/8 to 1/2 inches to adhere marble, granite, ceramic mosaic, quarry, porcelain and glass tile to plaster, drywall, concrete, backerboard, exterior grade plywood, plastic laminates, masonry surfaces, and most metal surfaces. May be used to set tiles vertically of up to 5 lbs. per sq. ft. Recommended for exterior use subjected to freeze thaw conditions. Also for use in and around pools, fountains, or other submersible conditions.