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

finishing.com -- The Home Page of the Finishing Industry

The authoritative public forum
for Metal Finishing since 1989
-----

Will chromating on copper be effective

I have need to protect copper as well as rose gold plating from tarnish, will like to know if it is effective to chromating on top of copper, Thanks.

David Wu
Jewelry manufacture - Dallas, Texas
2005

2005

Doubtful - the chromating solutions are manufactured to work with specific metals under specific conditions. To the best of my knowledge there are no formulations for copper. Also, the vast majority of chromating solutions involve hexavalent chromium - this would be a VERY BAD THING to use in the jewelry industry. Look into a clear lacquer instead.

Good luck.

Jim Gorsich
Compton, California, USA

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: