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"Based on online discussions and resources, the most comprehensive and highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, and more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."

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Etching copper

I have been creating designs on copper plate. I wish to etch the outline of the designs in order to make them seen. Previously I have used an acid but am unable to get one in our local stores. What solution should I use?

Jonathon Morgan
hobbyist - Sioux Lookout, On, Canada
2005

ferric chloride ⇦ on eBay or Amazon [affil link] direct chemical etch or hydrochloric acid reverse current (galvoetch).

Guillermo Marrufo
Monterrey, NL, Mexico
2005

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