if you happen to use stainless steel type 316 you have the toughest that you can imagine. It is used on seagoing yachts and in kitchens because it is resistant to nearly evrything. Even welding is difficult (but possible). In that case I can imagine that your acid will have a short live.
Stainless steel type 304 is much easier to handle.
Thibaud Chabot
At 10:49 23-01-2006, tony moss wrote:
....
The next surprise came with the third plate etched in this same mixture.
Gone was the previous fizzing activity at the surface so I extended the
etch time. On removal there was *some* effect in that the dial imprint
had appeared on the steel surface but more as a pale change of colour
rather than a deep cut.
....
Tony Moss
Th. Taudin Chabot, home email: [EMAIL PROTECTED]
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