Chromate Conversion Coating

MIL-DTL-5541F
Type II, Class 1A or 3

What is Chromate Conversion Coating?

Chromate conversion coating is a type of conversion coating used to passivate aluminum. It is primarily used as a corrosion inhibitorprimer, decorative finish, or to retain electrical conductivity. The process is named after the chromate found in chromic acid.

Why choose Chromate Conversion Coating?

  • Strong corrosion protection
  • Conductive surface
  • Ideal primer for painting
  • Adds no weight
  • Maintains pre-process dimensions

What is Clear ROHS Chemical Conversion?

In Europe, the RoHS (Restriction of Hazardous Substances) Directive is commonly referred to regarding elimination of chromic acid (hexavalent chromium) and requires the only alternative, which contains trivalent chromium — a more environmentally-friendly metal.

MIL-5541F CL 1 or CL 3A
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