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What is Anodizing and Why is It Used?

In the surface finishing industry, the term “anodizing” is very common and is frequently mentioned – but what is anodizing exactly?

What does anodizing mean?

Anodizing is a process that converts the surface of a non-ferrous metal into a corrosion-resistant, decorative, non-conductive oxide. It is a very common finishing technique for aluminum, although other metals such as titanium and magnesium can also be anodized. This process is common amongst several applications from aerospace to food services. Its ability to protect aircraft from corrosion and stray currents is vital to the success of the aerospace industry. Its high heat and corrosion resistance make for an ideal coating for food service. It is also commonly used in building materials, optics, defense, and medical industries.

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