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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] direct chemical etch or hydrochloric acid reverse current (galvoetch).

Guillermo Marrufo
Monterrey, NL, Mexico
2005

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