Whether spray-painting something wood, metal or plastic, if you don’t sand first, experts say you risk your new paint color quickly chipping off. Advertisement. Advertisement.

Any object sprayed with this primer, metal or wood, would be ready for a spray-applied topcoat. Rust-Oleum's Rusty Metal Primer is a king size can (24-oz) of painting power.

This brand of spray is designed for wood — which is key to achieving a perfect finish — as well as metal and other materials.