PRODUCT DESCRIPTION ONLY USE THE ALLOY PREP WITH THE POR15 2K URETHANE PRODUCTS. PLEASE CLICK HERE FOR THE METAL PREP DESIGNED FOR USE WITH POR15 RUST PREVENTIVE PAINTS, POR15 TOP COATS AND POR15 TANK SEALERS  POR-15 Alloy Prep is a water-based metal prep product specifically designed for the following POR-15 coatings: Glisten PC , WhiteCote , and all Hardnose paints . POR-15 Alloy Prep should always be used when painting directly onto aluminium and other reactive metals such as brass and copper. when used properly according to directions, it will insure a perfect bond every time. POR-15 Alloy Prep is not flammable and has no flashpoint, but protective gloves and goggles should be worn when using it. DIRECTIONS Spray or brush POR-15 Alloy Prep onto metal to be painted and keep wet for two minutes, then wash off with water, dry surface thoroughly, and paint. Leaving AP 120 on aluminium for more than two (2) minutes may result in a slight darkening of the aluminium surface. Keep the bottle tightly closed when not in use. Wear rubber or latex gloves when using. and follow instructions.