MAPEI Mosaic and Glass Tile 10 lb White Powder Thinset Mortar 4x4 Post Functional for cooking and serving 1000088971 Functional for cooking and serving Fully dimmable 25000 hours of traditional For use with glass (up to 6 in x 6 in) porcelain and ceramic tile (up to 15 in x 15 in) Non sag performance: great for sheet mounted mosaics where final alignment is critical Bright white color enhances the appearance of transparent or translucent glass or stone tile Mix with water no additive required Use on floors and walls When mixed with MAPEI Polymer Additive: for submerged installations subject to continuous water immersion or extreme moisture conditions swimming pools