Rust-Oleum Professional Flat Rusty Metal Interior/Exterior Oil-based Industrial Enamel Paint (1-Gallon)Rust Oleum Stops Rust Rusty Metal Primer helps stops rust and prevent corrosion when applied to heavily rusted metal. This primer features a unique fish oil based formula that penetrates rust to bare metal, and bonds tightly to rust to form a surface to which most top coats can adhere. Clean up is easy with mineral spirits. Transforms heavily rusted metal into a paintable surface that topcoats can adhere to with no need for additional topcoats Ideal