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Black nickel look for brass zippers

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hello!
we are a brass zipper manufacturing company and we want to know the cold water chemical process that will help us to give our brass zipper the shining black or black nickel color.

Ashish Jain
buyer - Ludhiana, Punjab, India
May 22, 2008

May 21, 2008

Hi, Ashish. Brass can be darkened with simple formulations like liver of sulfur [on eBay or Amazon] . However, this will not over the durability of nickel plating. Further, nickel plating can be self-leveling and impart brightness and shine, whereas the simple blackening process you seek will only blacken. If you want the finished part to be shiny without nickel plating you must buff it before blackening. Good luck.

Regards,

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

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