Why Can Aluminum Resist Corrosion?​

Why Can Aluminum Resist Corrosion?​

In humid and rainy outdoors, or factory workshops filled with chemicals, many metal materials are prone to rusting and deterioration. However, aluminum can remain intact for a long time, thanks to its excellent corrosion resistance.​

A dense oxide film naturally forms on the surface of aluminum. Though thin, this film acts like a strong protective shield, effectively blocking the intrusion of moisture, oxygen, and various corrosive substances. What’s even more amazing is that if this oxide film is accidentally damaged, the exposed aluminum surface will quickly react with oxygen in the air to regenerate a new oxide film, continuing to play a protective role.​

This characteristic allows aluminum to excel in many fields. Aluminum used for building exteriors remains as good as new despite wind and rain. Aluminum components in chemical equipment can withstand long-term exposure to acid and alkaline environments. Outdoor furniture made of aluminum maintains its beauty and functionality without frequent maintenance.​

It is this innate “protective power” that makes aluminum a trusted material choice across various industries.