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Metal finishing Q&As since 1989
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Copper Sheet Coloring to Burgundy Color
Q. I am interested in changing the color of copper sheet (16, 20 & 32 ounce) to burgundy on copper riveted component assemblies. I would prefer the color to be uniform. The items I will be working with will be approximately two square feet of surface area. I would like to not have to worry about EPA. I would like to use liquid or powder chemicals and would consider using a low voltage (0-10 Volts)/high amperage (up to 100 Amps) rectifier if it would simplify the process.
Ricky Wynn- Jackson, Mississippi
2001
2001
by Hughes & Rowe
on AbeBooks
or eBay or
Amazon
(affil links)
If it's a hobby, you probably needn't worry about the EPA. If you are selling it, you definitely do. Sounds to me like you're describing Row 2, Column 2 of the cover photo, Ricky .
Probably no need for electricity, just patinating chemicals. Most libraries have this book, which has hundreds of color plates and the formulas for them. Good luck.
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Ted Mooney, P.E.
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finishing.com - Pine Beach, New Jersey
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