Spehro Pefhany wrote:
Just the vapor from FeCl etchant will rust everything in a room that's
susceptible. Keep it away from your tools and machinery. Permanently
stains clothes too.

Best regards,
Spehro Pefhany

Yes, It was an intresting "view", the room where the company I worked
at in the early 1950s started to do printed circuits using feric
chloride as the etchant. What a mess. :-)
...lew...