What is the difference between mill finish aluminum and anodized aluminum?

Mill finish aluminum and anodized aluminum difference

Both are aluminum extrusion technical terms and both products are extrusion products in the mill.

What is the difference between mill finish aluminum and anodized aluminum?

Mill finish aluminum

Mill finish aluminum means the extrusion products without any surface treatment; it is a simple product after extrusion processing in the extrusion press, it is bare aluminum extrusion.

The appearance is the natural color of aluminum and it is sliver, as without any surface treatment, there will be some die lines and marks on the surface and it is widely used in the inner decoration and inner parts of finished products.

Anodizing aluminum

Anodizing aluminum means mill finish aluminum with the anodizing process, it is a high value-added product and the processes in the production will be more, the anodizing color can be Matt silver, anodized champagne, anodized bronze, anodized black, anodized gold and some other colors.

It is the mill-finished aluminum next surface treatment product, the anodizing production will be done in the tanks for the anodizing film, which can increase the thickness of the oxide coating on the aluminum improving its resistance to abrasion.

The anodizing processes can be alkali etching and acid etching; also some extruders make the polishing, sandblasting or shot blasting operation on the aluminum profile before anodizing to remove the die line and scratch.

The anodizing aluminum surface will be smooth and elegant and it is widely used in windows and doors, curtain walls, industrial aluminum profiles, and decoration profiles.

As the anodizing process can make different colors, anodizing aluminum profiles are the most popular in the market.

Honstar provides mill finish and anodizing profiles for our valued customers.

Honstar Aluminum Products Co., Ltd has been an aluminum industry leader for over 12 years in manufacturing precision aluminum parts, custom aluminum extrusions and standard aluminum extrusions.

We focus exclusively on producing the smallest, most complex, precision aluminum parts, custom aluminum extrusions, standard aluminum extrusions and floor covering aluminum profiles.

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