Rust Prevention
Hydrated iron oxide is permeable to air and water, allowing the metal to continue to corrode - internally - even after a surface layer of rust has formed. Given sufficient hydration, the iron mass can eventually convert entirely to rust and disintegrate.
There are several other methods available to control corrosion and prevent the formation of rust, colloquially termed rustproofing. Rustproofing is a technique that can provide resistance to rusting on steel items, for it to be successful, water-displacing oil should be used.
Corrosion control can be done using a coating to isolate the metal from the environment.
To prevent rust corrosion on automobiles, they should be kept cleaned and waxed. The underbody should be sprayed to make sure it is free of dirt and debris that could trap moisture. After a car is washed, it is best to let it sit in the sun for a few hours to let it air dry. In winter, or in salty conditions, cars should be washed more regularly as salt (sodium chloride) can accelerate the rusting process
Misconceptions
Most so called rustproofer’s think they can mask in and seal out any moisture from your vehicle by using tar or wax based products.
