Undercoating and Rustproofing

Undercoating can be added to the underside of the vehicle to deaden road noise and lessen the chance of rust forming. Rust (iron oxide) is formed when oxygen and water come in contact with iron. Since iron is used to make steel, rust can form on unprotected steel automotive components. To rustproof a vehicle more thoroughly, rust-inhibitors can also be sprayed inside body panels. Automotive manufacturers go to great lengths to rustproof vehicles during manufacturing. Most automobiles have corrosion perforation warranties for a designated period of time. Since perforation means hole formation, before the warranty applies, the steel would have to completely rust through.