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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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Finish material going through automotive e-coat

We supply automotive antenna systems and are developing a system that will have a bracket mounted the vehicle frame. The bracket will be assembled to the bare metal frame and go through the entire e-coat process. We need to supply the bracket with some sort of finish on it to prevent rusting during shipping and inventory. What would you suggest for a plating? Right now we have a clear zinc dichromate specified. Will that withstand the OEM's process?

Thanks,

Steven Archer
- Amsterdam, New York
2003

Unless you know that "dichromate" to actually be a misnamed trivalent chromate, I think you would get in trouble over the new hex-chrome-free standards anyway. If the inventory requirements are minor, perhaps a black oxide and oil process would suffice?

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

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