Waterfront Gallery, Harbour Quay, Port Alberni, B.C., Canada
Etching a Copper Plate
A piece of copper is cut to size and covered with "etching ground"; an image is drawn into the etching ground, exposing areas of copper.
Plates are submerged in an acid bath; the acid will eat away at the exposed areas of copper.
Depending on the strength of the acid, it can take an hour or so to etch a plate to the desired depth. Plates are rinsed in a water bath every 8 to 10 minutes, to clean out the "sludge" that collects in the etched grooves.
Etched plate, with the etching ground cleaned off. The next step is to fill the etched "grooves" with ink in order to make a print.