I’ve etched copper and brass before, using ferrichlorid and
sodiumpersulfate, and with these chemicals, I’ve used waterproof
markers, nailpolish and packageing tape as a resist. Now I’m about to
start experimenting with etching sterling silver, and I’m concerned
about the resists. I’ve ordered PnP-sheets, and if I understand
correctly, they should be fine, as should be packageing tape, right?
But what if I want to try to achieve a more organic look, would
markers or nailpolish work, or will they just wear out?
For the actual etching process, I have both 38% nitric acid, and
some ferric nitrate available, and I’m planning to try both - here in
Finland it’s unbelieveably hard to find a supplier for ferric
nitrate, and it was actually easier to find nitric acid.
I would appreciate any tips and hints on etching silver, too, since
this is my first time doing it. With nitric acid, I should probably
work outside, but how about ferric nitrate, I’ve seen a video on
Youtube where they etch silver indoors, but I don’t really have a
well ventilated area for that - will the fumes be awful?
Thanks for all the help!