About Universal Bonding Primer Rust-Oleum® Stops Rust® Universal Bonding Primer bonds topcoats to even the most difficult to coat surfaces, including galvanized steel and two-part epoxies. It creates a smooth, rust resistant finish for topcoat application. Firmly bonds topcoat to any surface Indoor/outdoor Durable, corrosion-resistaint
For Best Results Shake can vigorously after mixing ball begins to rattle. Apply 2 or more light coats a few minutes apart.