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Problems in z black plating of jewellery metals

Q. Dear sir,
We have a problem in z black plating in silver jewellery.

Krishan Gurjar
- Jaipur, India
May 20, 2012

A. Hi, Krishan.

Sorry, I am not personally familiar with the phrase "z black plating". Do you know whether this is a trade name or an acronym, and generically what the process is? Is it a blackening process that you are applying to the silver jewelry? In what way is it not satisfactory: not black enough, wears off too quickly, etc.? Thanks.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
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May 22, 2012

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