Technical Article: “Electrolytic Etching Copper and Silver Using Copper Nitrate” by Ben Dory
The term ‘salt-etching’ or ‘salt water etching’ is often synonymous with ‘electrolytic etching’ (e-etching). This has led to the use of sodium chloride as the salt, which can be problematic and counterproductive. With this article, copper nitrate will be presented as a replacement for sodium chloride.