Undercoating is not solely for preventing rust on steel components; it also plays a crucial role in protecting aluminum parts from corrosion. Aluminum, while resistant to rust, is still susceptible to corrosion, especially when exposed to road salts, brine, and other harsh chemicals. Rustproofing treatments, like undercoating, create a protective barrier that shields aluminum surfaces from these corrosive elements, preventing oxidation and pitting. This protection is essential for maintaining the integrity and appearance of aluminum components, such as wheels, engine parts, and body panels. By undercoating your vehicle, you ensure comprehensive protection for all metal surfaces of your vehicle, enhancing its durability, longevity and resale value over time.