Acid Etched Necklace

The process for acid etching copper is quite similar to the creation of circuit boards. A very abbreviated version of how you go about doing this: You prepare your metal with the design using a blocking agent, then immerse the metal briefly in nitric acid or ferric chloride. The acid eats away at the exposed metal. Once rinsed of acid, you clean away the blocking material and the design is exposed. You’ll find some great tutorials on the web for acid etching copper.

Once the etching was to my liking, I cleaned the metal and then silver brazed a nut hanger and additional gear elements to finish the look. Once totally cleaned, you can either leave it polished by applying a lacquer finish or allow the piece to develop it’s own natural patina. Copper is wonderful that way!