This weekend I was in Lamar, CO visiting my artist friend. She had
come across a new method of Acid Etching using a Sharpie Pen and the
Ferric Chloride. It worked like a dream and was so simple:
We cleaned the copper sheet by scrubbing it - 3M or Bon Ami. Drew
our pattern directly onto the clean copper sheet with the Sharpie. It
was amazing how nice lines worked - my friend draws beautifully and
drew the images from a Petrified Coral and it was stunning.
For etching, prepare it by putting the heavy packing tape on the
bottom of the copper sheet and a long tape to hold it onto the sides
of the Ferric Chloride Acid bath dish. It was suspended in the bath
for an hour, agitated along the way and checked during that time.
When it was satisfactorily etched, we removed the sheet and put it in
a bath of 50/50 ammonia water to stop the etching for about 30
minutes. Then put it in a bath of Baking Soda before scrubbing it
with the 3M again.
This is so much more simple than getting the pics transferred to PNP
and transferring with the hot plate. Now I have too many sheets of
PNP!!! Part of these instructions are in a new book, but I can’t
tell you the author.
Safety First: recommend gloves, and doing it in a well ventilated
Rose Marie Christison