Stamping

Anodizing Type II and Type III

Type II and III Anodizing are electrochemically produced aluminum oxide coatings on the surface of aluminum. Anodize grows into and on top of the surface of the base metal and is corrosion, wear resistant and machinable. The thickness of the coating can be controlled to within 0.001”. Both processes share the same Mil-A-8625 specification but Type II refers to a thinner “soft coat” while Type III is referred to a “Hard Coat.” The naming can be deceiving as aluminum oxide is one of the hardest coatings on the planet. The primary difference between them is the total thickness where type II will build to 0.0006” and type III will build to .002”

Both Type II and Type III anodize can be processed with a secondary operation to add color to the coating using specialty dyes. 

Metal Types

  • Aluminum alloys including all 2000, 6000, 7000 series wrought alloys
  • Aluminum
RoHS Directive (2011/65/EU)
  • MIL-A-8625 Type II Class I
  • MIL-A-8625 Type II Class II
  • MIL-A-8625 Type III Class I
  • MIL-A-8625 Type III Class II
Metal Types
  • Aluminum alloys including all 2000, 6000, 7000 series wrought alloys
  • Aluminum
Colors
  • Black
  • Clear
Benefits
  • Improved wear resistance, and hardness
  • Improved paint adhesion
  • Stain resistant, easy to clean, and is heat resistant
  • Corrosion resistance including marine, industrial, and high humidity
  • In compliance with RoHS Directive (2011/65/EU)
RoHS Directive
(2011/65/EU)
  • MIL-A-8625 Type II Class I
  • MIL-A-8625 Type II Class II
  • MIL-A-8625 Type III Class I
  • MIL-A-8625 Type III Class II