MAPEI Porcelain 50 lb Gray Powder Thinset Mortar Workshop Supplies Light output is approximately equal Item Weight:2.679 Light output is approximately equal to (3 1 2) 100 Watt incandescent bulbs The black and red chassis feels sculptural in hand Use Over Exterior Grade Plywood Yes (no additive required) Use Over Concrete Yes Warranty 1 year limited Series Name Porcelain Unit of Measure Pound(s) Unit of Measure Quantity 50 Rapid Setting No Color Finish Family Gray Freeze Resistant Post Installation Yes Product Type Powder For Use with Garage Walls Yes UNSPSC 30111500 For Use with Shower Walls Yes Manufacturer Color Finish Gray For Use with Vinyl Floors No For Use with Garage Floors Yes For Use with Bathroom Walls Yes Use Over Cement Backer Board Yes CA Residents: Prop 65 Warning(s) Yes For Use with Kitchen Counters Yes Use Location Outdoor Type Thinset mortar For Use with Shower Floors Yes Unmodified No For Use with Kitchen Backsplashes Yes Maximum Coverage Area (Sq Saltillo tile