Weco White Porcelain Thinset W-900 Pro 10lbsW 900 Pro 10 lb. White Polymer Thin Set Mortar is designed for installing porcelain tiles, ceramic tiles, quarry tile and natural stone. For interior exterior wall and floor installations. It is a mortar with excellent adhesion to the substrate and tile. Mortar adhesive for indoor outdoor use Modified with polymers for excellent adhesion and flexibility. Requires restriction of foot traffic and movement of heavy objects for 24 hours Approximately 15