BREAK-THROUGH 250 interior/exterior WB acrylic is a versatile, ultra-durable water-borne acrylic, formulated to bond to some of the most difficult substrates including fiberglass, ceramic tile, laminate and many plastics. The interior/exterior finish offers very fast dry and outstanding early block resistance for increased productivity with less down time. BREAK-THROUGH provides hardness similar to or better than standard alkyds but maintains flexibility to endure extreme bends and deformation without cracking and peeling. It is ideal for doors, windows, cabinets, shelving, hand rails, fixtures, trim, wood and concrete floors.