Rust-Oleum Stops Rust Clean Metal Primer. White. Maximizes the rust protection on your indoor and outdoor metal projects. Designed for lightly rusted, bare metal, or previously painted surfaces. Provides more than twice the rust protection of using enamels alone. Durable, corrosion-resistant. Modified alkyd resin. Acetone, toluene, xylene solvents. 5-year shelf life and more.