What is necessary prior to applying body paint?

For best results, the surface should be coated with a high build sandable primer prior to applying the desired automotive finish paint. Always follow the recommendations of the manufacturer of primers, sealers and finish paints for a proper application. Once a Rust Bullet Coating has dried for at least 24 hours, a primer may be applied directly to the Rust Bullet coating after scuffing with 150 grit.