Hard anodizing is produced under very specific operating conditions that produces a very function specific coatings. The resulting aluminum oxide film is similar in hardness to a ruby or sapphire. Abrasion resistance, extreme corrosion resistance and tight tolerance applications are the principal uses of hard anodizing.

Hard Anodize with PTFE

PTFE is a highly concentrated polytetrafluoroethylene dispersion that is used as a dip following hard anodizing to produve abrasion resistant oxide coatings that exhibit high lubricity.