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

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"Colour Gold" Plating

what is colour gold and how it is polished? I know how to plate 24 carat gold. But in case of 22 carat we use 3:2 copper and silver as alloy to make it . I want to know how to make it? If you know, please answer it .

padmanava j [last name deleted for privacy by Editor]
plating shop - cuttack, orissa, India
2004

April , 2008

Hi, Padmanava. The word "color" has two possible meanings in this context. First, you can create different colors of gold plating by small additions of other metals. The Metal Finishing Guidebook includes a gold plating article that explains what metals to add for a number of different colors.

The second meaning is that metals do not properly reveal their true color when only roughly polished. The color comes out when a certain smoothness is achieved in the buffing process; and the step in the polishing process which brings out the color is called "color buffing". Good luck.

Regards,

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

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