Rust-Oleum Rusty Metal Primer spray bonds tightly to rust to form a surface that topcoats can easily adhere to. This formula drives out corrosive air and moisture other primers leave behind. Provides more than twice the rust protection of using enamels alone. It features a comfort tip with a wider finger pad to reduce fatigue caused by continuous spraying. In addition, there is an any-angle spray feature that allows you to spray in any direction, even upside down. For indoor or outdoor use. Corrosion resistant. Color Red Oxide 12 ounce spray can. Rust-Oleum.