Services | Anodize and Hard Coat Anodize
Anodize | MIL-A-8625 Type II
Class I Clear
Class II Dyed – black, red, blue, green, gray, gold, orange,
purple. Customer colors and color matching available, call 612.331.8895 for more
information.
Anodize (Type II) is an electrolytic process used to increase the thickness of the
natural Aluminum oxide layer of Aluminum parts and components. By increasing the
oxide layer, the corrosion resistance and wear resistance of the processed parts
is increased. Anodize also provides for better adhesion of paints and primers to
Aluminum surfaces as compared to bare metal. Typical thickness .0002-.0004”, dyed
.0006-.0008”.
Hard Coat Anodize | MIL-A-8625 Type III
Class I
Class II Dyed – black
Hard Coat Anodize (Type III) is similar to Anodize in that it increases the thickness
of the natural Aluminum oxide layer, though Hard Coat Anodize is much a much thicker
and hard coating - .001-.002” thick and up to 70 Rc. Parts and components that have
been Hard Coat Anodized can be impregnated with Teflon (PTFE) after processing reducing
the coefficient of friction.
Chemical Conversion Coating | MIL-C-5541
Twin City Plating is now featuring a RoHS compliant, hex-chromium free Chemical
Conversion Coating (Chromate Conversion, or Chem Film) coating that meets MIL-C-5541
and EU ELV directive requirements and is QLP approved. The TCP-HF Chromate Conversion
coating out performs many other RoHS compliant conversion coatings on the market
in corrosion resistance, durability, as well as with paint and adhesive bonding.
The TCP-HF can also be used as an Anodize and Hard Coat Anodize sealer for improved
corrosion resistance capabilities. For more information on capacity and pricing
please contact us.