John Burgess wrote:
G'day: I have used the plate-off method, and it does remove firestain. You have to use the dreaded cyanide bath (sodium cyanide; the potassium salt is much more expensive
John:
Thanks for the info. I refuse to use cyanide in my shop. Is
potassium salt a safer even though more expensive way to deplate?
What is expensive?
Kenneth Gastineau
@Kenneth_Gastineau1