Rust Control 4 in 1 contains the properties of four different products. Anti-rust, primer, surface paint and varnish. You can paint all metal surfaces with this product. The product is excellent for e.g. the inner surfaces of fenders, brake calipers, etc. surfaces that are not so precise in terms of surface color. In addition to metal surfaces, Rust Control rust protection paint is also suitable for fiberglass, wood, and plastic surfaces, even if they do not need rust protection. Plastic surfaces need a separate plastic adhesion.