Aluminium finishing
Sulphuric anodising
Sulphuric anodising forms a uniform, wear- and corrosion-resistant oxide layer united with the aluminium substrate. It provides an ideal base for colouring and, once sealed, an easy-to-maintain finish that is as much cosmetic as protective. We anodise aluminium and its alloys to AMS, MIL, and BS/ISO specifications as well as your own.
- Thickness
- 5–25 microns
- Standards
- AMS, MIL, BS/ISO
- Turnaround
- 5–7 working days
Sulphuric anodising
An electrochemical process that forms a uniform, wear- and corrosion-resistant oxide layer, united with the substrate. It provides an ideal base for colouring and, when sealed, an easy-to-maintain finish that is as much cosmetic as protective. For wear-critical parts, see hard anodising.

| Materials | Aluminium and aluminium alloys |
|---|---|
| Thickness | Typically 5–25 microns |
| Colours | Natural, black, blue, red, gold, orange, titanium |
| Standards | AMS 03-25, MIL-PRF-8625, BS EN 12373-1, BS EN ISO 7599, RoHS & REACH, plus customer specs |
| Turnaround | Typically 5–7 working days · express available |
