Non-chrome conversion coating

An SAF Conversion Coating is a proper corrosion resistant aluminum surface treatment for painting, powder coating, and adhesive bonding. Alodine, Alocromin, and Iridite are trade names sometimes applied to these coatings. These coatings are applied through an immersion process and are compatible with most aluminum alloys. Non-chrome coatings are often specified where environmental considerations are paramount.Chrome conversion coatings provide measure of corrosion resistance and can also be used as a standalone finish.