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Stripping hard anodising without dimensional change?
Hello I need too remove hard anodising from a disc which is around 50 µm but the only problem is that it has a bore in the middle with close tolerance any other way without using caustic etch many thanks Phil
Phil Martinemployee - United Kingdom
May 19, 2010
Hi, Phil. A mixture of chromic and phosphoric acid will strip anodizing without attacking the underlying aluminum. If you use the term "chromic-phosphoric stripping" in our search engine you will find many detailed discussions. But whatever the thickness of the anodizing, that much will be gone after stripping.
Regards,
![Ted Mooney, finishing.com](../portraits/ted_mooney_beach.jpg)
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
May 20, 2010
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