Confused about aluminum alloy surface finishing? Our guide compares anodizing, powder coating, sandblasting, passivation & plating. Learn how to select proper surface treatment for aluminum die cast components for automotive, telecom and electronic housing.

When customizing aluminum CNC machined or die casting components for telecommunication, automotive and outdoor electronic equipment, anodizing stands as the most mainstream surface finishing solution. Many buyers get confused by three core anodizing types: Type I, Type II and Type III hard anodizing.