Aluminum Anodizing
We meet tight tolerances using precision control systems to achieve accurate coating thickness of aluminum anodized parts. Our services include Type II and III, Class 1 and 2.
Type II Anodizing
The most common aluminum anodizing creates a coating thickness of up to 1mil. We seal dyed components, which increases corrosion resistance and reduces fading.
Benefits of Type II Anodizing
- Corrosion resistance
- Dielectric properties
- Aesthetics
- Better bonding
- Non-contaminating (for medical instrumentation, etc.)
Type III Hard Coat Anodizing
Our Type III hard coat anodized aluminum results in a coating up to 2 mils thick for greater durability. We meet tight tolerances for hard coat anodizing using our unique control systems to achieve accurate coating thickness of aluminum anodized parts. Our services include dying options.
Post-Anodizing Dying
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.
Industries
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Medical
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We finish your materials within tight tolerances to meet exacting quality and regulatory demands.
Military
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Defense contractors rely on our anodizing, laser-marking, descaling, and other services to meet military specifications.
Aerospace
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We offer a range of finishing services for aerospace components and maintain NADCAP certification
Precision Manufacturing
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CNC manufacturers rely on our services to complete final finishing.
Pharmaceutical
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We innovate processes in the science and art of finishing precision-engineered pharmaceutical components.
Water Purification
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Our services for finishing water-system components include cryogenic deflashing, passivation, and laser marking.
Automotive
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Our precision capabilities handle high-volume jobs for automotive OEMs.
Computing
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We offer anodizing and laser marking of components and enclosures for computers and audio equipment.
Electronics
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Our finishing services meet critical tolerances for metal and plastic parts made for consumer electronics.
Food Service
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Our cleaning and finishing services meet strict regulatory requirements while enhancing performance and longevity.
Hydraulics
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Our deburring, deflashing, and other services optimize the operating life of hydraulic equipment.
Firearms
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Our suite of capabilities delivers precise results producing the highest quality finishes.
NADCAP Certified
Regular Nadcap reviews and audits ensure compliance with AC7004 requirements for the aircraft, space, and defense industries.
End-to-End
Finished Means Finished. Done
We eliminate the need for your parts to go elsewhere.
FAQs
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
- Aesthetics
- 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:
- Blue
- Green
- Purple
- Gold
- Orange
- Olive drab green
- Red
- Gray
- Black
We can produce custom colors upon request.