> > I haven't tried it. I think you just make up a saturated solution for your hydrogen peroxide equivalent. I am still using the Edinburgh etch version of ferric chloride which incidentally is much faster than straight ferric chloride, but still nasty. When I use up my supply of this stuff, I am going to give CuCl a try with sodium perborate. > > One of the thingsI like about CuCl is that it is transparent enough to see what's happening without pulling the board out. It gets darker and darker as copper dissolves, but a teaspoon of H2O2 clears it right up. When I'm done etching I usually leave the air bubbler on while I drill and stuff the board and that re-oxidizes it some for the next use.
Message
Re: HCl Etchant Question
2010-03-23 by James