About Aluminum Anodizing 4OH - 4e = 2H2O + O2 About Aluminum Anodizing Products in aluminum or aluminum alloy for the anode placed in electrolyte solution, the use of electrolysis to the surface of alumina film formation process, known as the aluminum and anodized aluminum alloy. Anodized aluminum is essentially the principle of the principle of water electrolysis. When the current passed, will ...