Anodization

Anodization is an electrochemical process that strengthens and protects metal surfaces, commonly aluminum. It involves immersing the metal in an electrolyte solution and applying an electric current, which creates a thick, durable oxide layer on the surface. This oxide layer enhances corrosion resistance, wearability, and allows for dyeing or coloring the metal. The process essentially transforms the metal’s surface into a protective, decorative shell, improving its longevity and appearance without adding extra material. It's widely used in consumer electronics, architectural applications, and cookware to ensure durability and aesthetic appeal.