# Anodizing Type II (Dyed)

> Color that cannot peel: dye locked inside the part’s own oxide layer.

- Process group: Anodizing
- HTML page: https://fabvector.com/finishes/anodizing-type-ii-color (Portuguese: https://fabvector.com/pt/finishes/anodizing-type-ii-color)

## Specifications

| Spec | Value |
|---|---|
| Coating thickness | 8–25 µm |
| Tolerance impact | Same as clear Type II: grows ~50% of coating thickness per surface; we machine pre-finish dimensions to compensate. Specify the finish at quote time so compensation enters the program. |
| Corrosion rating | 336 h salt spray (ASTM B117, per MIL-A-8625 Type II). |
| Appearance | Saturated black, red, blue, gold or custom tones; 6063 gives the clearest colors, 7075 trends warmer. Bead blasting first yields the premium consumer-electronics matte. |
| Applicable substrates | aluminum |

## Not suitable for

Exact color matching across different alloys in one assembly (tones shift visibly); surfaces requiring electrical conductivity; prolonged direct UV exposure for reds and golds (organic dyes fade — black and clear are the UV-stable choices).

## Conditional compatibility

- **aluminum-2024**: Copper-rich alloy dyes unevenly and corrodes faster at pores; clear Type II or chromate preferred.
- **aluminum-mic-6**: Cast porosity yields mottled color; functional clear coats only.

## Typical applications

- Consumer electronics housings and bezels
- Color-coded assemblies and tooling
- Black optical components (stray-light control)
- Branded visible parts on machines and devices