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rustproofing

vb. (present participle of rustproof English)

Wikipedia
Rustproofing

Rustproofing is the prevention or delay of rusting of iron and steel objects, or the permanent protection against corrosion. Typically the protection is achieved by a process of surface finishing or treatment. Depending on mechanical wear or environmental conditions, the degradation may not be stopped completely, unless the process is periodically repeated. The term is particularly used in the automobile industry.

Usage examples of "rustproofing".

Country Squire wagon soft on its shocks, with one dented fender hammered out semi-smooth but the ruddy rustproofing underpaint left to do for a finish.