how does anodising prevent corrosion
Anodising to Prevent Galvanic Corrosion. Galvanic corrosion is a serious issue across the engineering industry and it has a variety of solutions, which all boil down to one technique: breaking the circuit.Anodising is one way to break the circuit.The anodic coating is made up of aluminium oxide, which is a good electrical insulator.The oxide layer is a thousand times thicker than the natural oxide that forms on aluminium, which offers essentially no galvanic protection.recautions When Using Anodising for Galvanic Corrosion Protection. Anodised aluminium has an electrically insulative surface, just like any of the other barrier protection techniques and if this surface is damaged then the protection it provides will be reduced or eliminated.