Chemical Film

Alodine

The Chemical conversion process offers the several advantages over the Anodizing process. Chromate coversion layers are a very thin coating that provides  several features. Chemical film is a cost effective alternative for anodizing when abrasion resistance is not required; it also has the added benefit of maintaining electrical conductivity which anodizing will not.

goldpart

  • Does not affect part dimension
  • Enhanced corrosion resistance
  • Enhanced adhesion of subsequent coating (paint, powdercoating)
  • Electrically conductive
  • Environmentally safer alternative
  • Adds no weight

About the process

Chromate is an excellent primer-treatment for paint or adhesives since it increases the product’s ability to form a bond with the aluminum. It is often used in by the electronic industry because it provides corrosion resistance while remaining electrically conductive.

The color produced by this process vary, depending on the aluminum alloy being treated, surface conditions, and the type of chromate. A&E Anodizing currently offers both clear and gold Chromate.

Gold Alodine

MIL-C-5541E class 1A
MIL-C-5541E class 3

Clear Alodine

MIL-C-5541E class 1A
MIL-C-5541E class 3
MIL-DTL-5541 Type II (ROHS Compliant) class 1A and class 3