3M™ Polyurethane Adhesive Sealant 560 is a very strong one component, moisture curing products which form permanent elastic bonds. Bonds to a wide variety of materials including plastics, FRP, SMC, aluminum, steel, coated metal, and wood. Sealant comes in a 10.5 oz. cartridge. This sealant can be used for mounting mirrored acrylic sheet to backing. Color is white.