Anodize
Anodizing (Standard)
Controlled artificial oxide skin grown electrochemically in sulfuric acid. Hard, wear-resistant, and ideal for color decoration.
Key Parameters
Thickness
Salt Spray
336+ hrs (per MIL-PRF-8625)
Wear Resistance
High
Recommended Base Materials
AL5052, AL6061 Aluminum enclosures, front panels
Factory Work Sequence
1
Alkaline cleaning and de-smutting to expose fresh aluminum surface
2
Immersion in 15% sulfuric acid electrolyte at 1-2 A/dm² current density
3
Cold water rinsing and nickel acetate sealing to lock pores
Advantages
- Hard anodized surface (HV 300-400) approaching ceramic hardness
- Excellent corrosion resistance in salt spray testing
- Accepts dye coloring for brand-specific aesthetics
Limitations
- Only applicable to aluminum alloys (not steel, stainless, or copper)
- Dimensional build-up of 5-25 μm must be accounted for in tolerance-critical areas
Apply this finish?
Upload STEP files to our automated Estimator for custom thickness allowances and lead time quotes.