Hard Coat Anodizing Services
We are well-known for providing high strength coatings for many different applications at Nickel Composite Coatings, Inc. (NCC). We provide a number of different finishing options, including hard coat anodizing. Our hard coat anodizing process forms a uniform aluminum oxide layer on the surface with approximately 50% penetration into the material. This process provides numerous benefits, including increased wear and abrasion resistance, excellent protection against corrosion, and better dielectric properties. Our anodizing process meets MIL-A-8625 Type III Class 1 (non-dyed) and Class 2 (dyed) military standards. Working with aluminum and aluminum cast alloy substrates, we provide hard coat anodizing with smoother and harder surfaces than standard anodizing. We use an immersion process with automation capabilities that include time, temperature, and current-based hoist systems. Black is the most-often used color, non-dyed materials typically change to either gray/bronze or gray/black depending on the alloy and thickness of the aluminum. Our anodizing is available with a plating of 12 to 50 microns thick, and our machinery can handle parts up to 4’ high and 3’ in diameter. When the anodizing process is complete, sealing can be performed as a post-plate operation. Sealing is advised when maximum corrosion resistance is required; however, if the main function is for maximum abrasion or wear resistance, sealing should not be performed.
We work in volumes that range from small lots to large volume production runs. To learn more about our hard coat anodizing, please see the information in the below chart, or contact us directly.
Hard Coat Anodizing Highlights
- Hard Coat Anodize
- Hard Coat Anodizing to MIL-A-8625 Type III Class 1(non-Dyed) and Class 2 (Dyed)
- Substrate
- Aluminum
Aluminum Cast Alloys
- Coating Characteristics
-
- Wear Resistance
Corrosion Protection
Dielectric Properties - Abrasion Protection
Aesthetics
- Wear Resistance
- Hardness
- 65 to 70 HRC
- Thickness Range
- 12.5 microns – 50.0microns but can be higher for salvage purposes on selected alloys. There is 50% penetration of coating into substrate
- Part Height
- Up to 4 ft.
- Part Length
- Up to 3 ft.
- Part Geometry Limitations
- Avoid or mask the following when designing for an anodized finish
- blind holes
- hollow weldments
- steel inserts
- sharp corners
- heavy to thin cross sections
- Method of Application
- Anodizing
- Automation / Manual Capabilities
- Hoist System
- Temperature
- Time
- Current
- Pre-Plate Operations
- Chemical Wash
Degreasing
- Post-Plate Operations
- Hot Water Seal
Nickel Seal
- Post-Coating Operations
-
- Honing
Lapping - Cleaning
Packaging
- Honing
- Inspection
- Visual
Dimensional
Cross sectional thickness analysis
- Quality
- Statistical Process Control (SPC)
- Additional Services
- Assembly
- Production Volume
- Large Volume Production Runs
Small Lots Available
Additional Information
- Industry Focus
-
- Marine
Aviation and Aerospace
Automotive
Motorcycles - Electronics
Equipment
Manufacturing
- Marine
- Industry Standards
- MIL-A-8625 Type III Class 1(non-Dyed) and Class 2 (Dyed)