Rustproof
Rustproofing is a condition of preservation or protection, by a process or treatment whereby the rate at which objects made of iron and/or steel begin to rust is reduced. The degradation in the long term can not be stopped completely, unless the rustproofing is periodically renewed. The term is particularly used for the automobile industry.
Read more about Rustproof: Rust Removal, Car Bodies, Technological Advancement in Metallurgy