Instantly galvanize metal surfaces to protect them from corrosion with Rust-Oleum Professional Galvanizing Compound Spray. This Bright Gray version (7584838) contains 80% zinc and 12% aluminum in the dry film, designed specifically to match newer galvanized surfaces such as fences, gutters, ducts, and structural metal. It applies a galvanized film with cathodic protection that resists rust, scratches, and chips for long-lasting durability.