We apply colored dyes after aluminum anodizing. The parts undergo sealing to reduce color fading.
Colors shown are for general reference only. Other colors may be available upon request.
Your Single Source of Total Solutions
We look beyond today to increase efficiency and serve your business.
Finished Means Finished. Done
We eliminate the need for your parts to go elsewhere.
Aluminum anodizing is a controlled electrochemical process that increases the thickness of the oxide layers that naturally exist on aluminum surfaces, improving corrosion resistance.
Arrow Cryogenics offers standard (MIL-PRF-8625 Type II) aluminum anodizing at our state-of-the-art facility in Blaine, Minnesota. We also provide hard coat anodizing (MIL-PRF-8625 Type III).
Type II aluminum anodizing is used for a wide range of applications ranging from computers to aerospace and has several advantages, including:
- Corrosion resistance
- Dielectric properties
- Better bonding
- Non-contaminating (medical instrumentation, etc.)
- Type II Aluminum Anodizing Service standard anodized aluminum has a coating up to 1 mil thick and is sealed to seal in the dye and close the pores after the anodizing process for improved corrosion resistance. It is the most common form of aluminum anodizing and is available in dyed and non-dyed options.
- Type III Aluminum Anodizing Service Hard Coat Anodized Aluminum is a thicker, more durable coating up to 2 mils thick. It is also available in non-dyed and dyed options. For the best wear resistance and when adhesion is required on a non-dyed component, it is typically not sealed.
When anodizing aluminum parts with tight dimensions, it is important to understand that the coating will affect the final dimensions. In general, 50% of an anodized coating will penetrate the material’s surface, and 50% of the coating builds up on the surface. But, the change in final dimensions is determined by the thickness of the coating.
Class I coatings have a mil thickness of 0.7 (18 microns) or greater for aluminum anodizing. Class II coatings have a minimum mil thickness of 0.4 (10 microns). Class I coating is a high-performance anodic finish used primarily for exterior building products and other products that must withstand continuous outdoor exposure.
Arrow offers aluminum anodizing in these popular colors:
- Olive drab green
We can produce custom colors upon request.