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Type II vs Type III Anodizing Decision Assistant
Use application intent to identify the right engineering-review path. The result is a starting point under the MIL-PRF-8625 category framework, not a process-availability promise or an order specification.
Describe the requirement
Recommended starting path
Engineering review required
Define the application intent first
Type and class cannot be selected safely from the page label alone.
Put these items in the review
- State alloy, temper and current drawing revision.
- Describe the functional or appearance objective.
- Mark critical dimensions, contacts and cosmetic surfaces.
Boundary: Final type, class, color, sealing, thickness, inspection evidence and Zhenling availability remain order-specific.
| Decision field | Type II review path | Type III review path |
|---|---|---|
| MIL category | General sulfuric-anodizing category | Hard-anodizing category |
| Primary intent | Protective or decorative requirement with dimensional and appearance review | Wear-focused or hardcoat requirement with a dedicated dimensional review |
| Class | Class 1 is non-dyed and Class 2 is dyed in the referenced military framework; confirm the order requirement. | |
| Drawing inputs | Alloy, finish-sensitive features, masks, rack contacts, significant surfaces, measurement locations and acceptance evidence. | |
Have a drawing or finish callout that needs a Type II/III review?
Send It to Engineering →


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