Hard coating is a process that produces a dense, uniform layer of aluminum oxide on the surface of an aluminum part. This coating is harder than case hardened or chrome steel, yet still retains the light weight and excellent working quality of aluminum.
Hardcoat anodizing assures product dimensional stability in high performance applications. Hardcoating is particularly resistant to abrasive wear and it builds evenly on all surfaces regardless of configuration. This increases product wear and life and often can facilitate the use of a less expensive aluminum material for part fabrication as opposed to stainless or higher grades of steel or the cost of a hard chrome plating finish.