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Is anodizing FDA or USDA approved?

We are in the process of acquiring a new customer, that is a food packaging machine manufacturer. They are asking us to provide them with some type of FDA or USDA approval for anodizing the machine parts. I have looked everywhere. I have determined that hard anodizing or clear anodizing is the only preferred treatment. However, I need something that I can submit in writing to the customer. Please, help! They are afraid of peeling or discoloration. Any help would be greatly appreciated. Thanks, in advance.

Shelley Wheeler
Office Manager - Houston, Texas
2004

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Hi, Shelley. This comes up from time to time. Please see letters 10881 and 19624 for very good coverage of the topic.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2003