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Bright color for anodizing aluminum
Hello Folks,
I am color anodizing aluminum for the company where I work, but even when I am getting acceptable results, I would like to get very shine aluminum oxide coating. Is there any suggestion of how to get the parts that nice?
Reynaldo Arroyo
- Valencia, Calif, U.S.A.
Bright dip, or electro-polish prior to anodizing
Marc Green
anodizer - Boise, Idaho
You won't achieve this in the anodizing process itself; it must be done by polishing, electropolishing, or brite dipping. Brite dipping is the most common approach but it requires a nitric-phosphoric brite dipping solution which is quite intimidating, requiring as it does a
'garage type' ventilation system, double walled type 316L stainless steel tanks, etc.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
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