Anodizing Services

Anodize your custom parts with ALF Industries finishing service. Request a quote, or design anodized parts with ALF’s FREE CAD.

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20+ Years Experience.

Anodizing Services

What is Anodizing?

Anodizing protects metal by increasing the thickness of its surface oxide layer. When a coating less than 0.001” is produced, it is called standard or Type II anodizing. When coatings thicker than 0.001” are produced, it is called hardcoat or Type III anodizing. Anodizing is often used to color parts, improve durability, and enhance corrosion resistance. It also provides better adhesion of lubricants to raw metal and reduces galling of threaded components. Anodizing is typically applied to aluminum but can also be applied to other metals and dyed to almost any color.

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How Anodizing Works

Anodizing works by electrolytic passivation, a process where the part being coated serves as the anode of an electrolytic cell. When this cell is electrically charged with DC current, oxygen is created on the surface of the anode, which then reacts with the part to form an oxide layer. Anodizing is commonly performed in a sulfuric acid solution.

Satin Hardcoat Anodizing (0.002″ Minimum Thickness) Satin Sulfuric Dyed Anodizing (0.0004″ Minimum Thickness)
Black Black
Non-Dyed Blue
Bronze
Gold
Grey
Green
Orange
Red

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At ALF Industries, we're here to help with custom manufacturing, precision engineering, and advanced finishing solutions, committed to delivering exceptional results.

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