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Anodizing is an electrochemistry conversion process that usually make an oxide film on aluminum. There are different types of anodizing, mostly commonly as:

  • Anodized Type I-Chromic Acid

  • Anodized Type II-Sulfuric Acid and

  • Hard anodized Type III Mil-A-8625 designation.

  • Other less common types are phosphoric acid and titanium anodizing.

The anodizing is a porous structure that grows out of the aluminum base and absorb dyes very well. Plating Tech Zone process black, blue, green and red colors.


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