NOTE: Not all cast aluminium parts can be anodised The surface of aluminium is susceptible to attack from salt, the acids in rain and oxidation from the atmosphere. The anodising film is a hard, corrosion resistant aluminium oxide produced from the part itself so cannot peel off, making it ideal for restoring items on cars and motorcycles. The Anodising gives it permanent protection and our new kit allows you to anodise uncoated aluminium in your garage. Aluminium Anodising Kit (5 litres) contains power supply, tank, anodising solution, cathode set, scouring powder and all ancillary equipment and instructions.