Process — etching RSS

Etching Steel Book Covers

Preparing the saline sulfate etch: equal parts copper sulfate and table salt. The steel book saga continues! We’ve arrived at the cover treatment, which consisted of etching the cover art into the steel and then applying a rusted patina. There’s plenty of info online about etching solutions for copper and zinc, but not so much for steel as it isn’t used in traditional printmaking. When researching less-toxic solutions I came across the Edinburgh Etch and the Saline Sulfate Etch (what we’re doing here). I was skeptical at best, and I had a hard time locating copper sulfate. Then one day

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