Zinsser 1 gal. 400 VOC Metal Primer (Case of 2) is a high performance direct to metal primer that bonds to both heavily rusted and clean metal surfaces. Its unique alkyd formulation delivers twice the rust protection of top coat paint alone and carries the Rust-Oleum Certified Protection seal. Superior adhesion prevents chipping, cracking and peeling on most interior and exterior metal surfaces. Color: Flat Red.