Hello,
I just joined and have been using ferric chloride to photo etch brass
sheets to make parts for models. This is a quick rundown of how it
works:
http://picasaweb.google.com/ErieChris333/EtchingI have read about using Sodium Persulfate instead of ferric chloride. I
heard it was cheaper and worked faster.
Can anyone here give me some insight. Does it really work better
(faster)? and were can I buy it and learn how to mix it?
Thanks
Chris