Surface finish
Anodizing grows a hard, porous oxide layer on aluminium. We control the thickness, color, and seal to match your part.
What it is
Anodizing is an electrochemical process. It turns the top layer of aluminium into aluminium oxide. This layer is part of the metal, not a coating on top. That is why it cannot peel off. The result is a matte or satin surface that can be dyed in many colors and sealed against corrosion.
How it works
Clean & degrease
We remove oil, dirt, and oxide so the surface is uniform.
Etch & desmut
A light acid etch evens the surface and prepares it for anodizing.
Anodize in acid bath
The part sits in a sulfuric acid tank as the anode. Current grows the oxide layer.
Dye (optional)
We immerse the part in dye to reach the target color.
Seal
A hot seal closes the pores and locks in color and corrosion resistance.
Why choose it
The oxide layer is much harder than raw aluminium.
Sealed anodize protects against rust and salt spray.
Dyed colors stay bright and will not peel.
The oxide layer is non-conductive where needed.
Safe for consumer and medical touch parts.
Resists fading in indoor and mild outdoor use.
Typical specs
| Specification | Typical range / value | Notes |
|---|---|---|
| Process type | Type II (decorative) / Type III (hardcoat) | |
| Coating thickness | 5–25 µm (Type II), up to 50 µm+ (hardcoat) | |
| Color options | Clear, black, blue, red, gold, custom | |
| Hardness | Up to ~60 HRC equivalent (hardcoat) | |
| Sealing temp | 95–100 °C |
Best applications
Housings, knobs, and brackets.
Mirror caps, badges, interior parts.
Lightweight structural and enclosure parts.
Panels and decorative fittings.
Hand tools and instrument bodies.
Materials
We apply Anodizing to the materials below. Not sure if your material qualifies? Our engineers will confirm it for free.
Our solution
We run both decorative and hardcoat anodizing with color matching to RAL and custom samples. Your part is machined and finished under one roof.
Design tips
Anodize builds slightly on edges; add a small radius.
Different alloys anodize to different shades.
Tell us threads and bores to mask.
Large flat areas may show minor tone variation.
FAQ