Cupric chloride etching

cupric chloride

Cupric chloride is generally considered a better etchant even though it is not as well known as ferric chloride. [Rolan Yang] has a photoset of the process. Cupric chloride is usually sold as a photography chemical. The best feature is that the solution can be regenerated so you won’t be disposing of nearly as much etchant. I found a great page detailing the process for the hobbyist.

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