Will Anodized Aluminum Rust?

Anodized aluminum is aluminum that has been submerged in a chemical acid bath, causing an electrical current to run through it. ... Because of that, anodized aluminum does rust but not in a typical way, and more importantly not in a harmful way. It has increased resistance to corrosion and wear.

How long will anodized aluminum last?

Anodizing provides a thin aluminum oxide layer, which will deteriorate over time. Depending on the thickness and quality of the anodization, the surface should last 10-20 years.

Is anodized aluminum good for outdoors?

Anodized aluminium has been used in external architectural applications since the 1930s. Some surviving buildings are now over 70 years old and the anodized aluminium is still in good condition.