What is anodising?

By definition, anodising is “a process to coat a metallic surface electrolytically with a protective or decorative oxide.” A coating of aluminum oxide is grown from the aluminum by passing an electrical current through an acid electrolyte bath in which the aluminum is immersed. The coating thickness and surface characteristics are tightly controlled to meet end product specifications. Unlike most other finishes, anodizing preserves the natural luster, texture, and beauty of the metal itself. The anodised coating is hard, durable, will never peel, and, under normal conditions, will never wear through.