Rust-Oleum Stops Rust Universal Bonding Primer QuartRust Oleum Stops Rust Universal Bonding Primer firmly bonds topcoats to any difficult to paint surface with maximum adhesion and superior durability. Perfect color is within reach with a quality base layer on your project. For the ultimate finish, apply to galvanized metal, wrought iron railings, furniture, aluminum flashings, PVC, porcelain, masonry, glazed brick, metal, wood, fiberglass and more. Primes any surface that is traditionally hard to coat