Anodizing is an electrochemical process that converts a metal surface into a decorative, durable, corrosion-resistant, anodic oxide finish.
The aluminium oxide is not applied to the surface like paint or plating, but is fully integrated with the underlying aluminium substrate, so it cannot chip or peel. It has a highly ordered, porous structure that allows dyes to be absorbed into the structure rather than just sitting on the surface.
Here are details of a method that we have thoroughly tested and which has consistently given us good results.
Anodising Aluminium – Pupil
Anodising Aluminium – Teacher
Anodising Aluminium – Risk Assessment