Can anyone suggest a supplier for ferric nitrate, and some
concentrations for a decent etch on sterling? Thanks Danny
Hi Dnny Since I’m in Canada, my supplier is probably not much use to
you. I’ve been using a ferric nitrate solution of 200 gm ferric
nitrate to 300 ml of distilled water. I started out with a much more
dilute solution which was taking 4 - 5 hours to etch. Each time I
made a new solution I tried different ratios. This latest one is
etching nicely in about 2 hours.
Goss Design Studio
Sandra Noble Goss
Owen Sound, Canada.