Full Version: Red Letters on Stainless

From: Rodney Gold (RODNEY_GOLD) [#22]
 4 Aug 2006
To: Stunt Engraver (DGL) [#17] 5 Aug 2006

The co that supplys us the the Ferric takes the spent etch back. We just decant it into the containers it came in and they collect.
It seems to poses no ecological risk or toxicity according to this
http://wfldelearn.pssd.com/BinderView_PSS/vault/005/005325.pdf
Tho it does have recommendations as to disposal which probably vary from country to country.
I certainly wouldnt dump it down the drain or anything like that


From: Dave Jones (DAVERJ) [#23]
 5 Aug 2006
To: Rodney Gold (RODNEY_GOLD) [#22] 5 Aug 2006

Don't forget that if you've used the ferric to etch stainless that the ferric now contains a fair amount of chromium, since stainless has a high chromium content. Chomium is a toxic metal.

EDITED: 5 Aug 2006 by DAVERJ


From: Ward (STENSONENG) [#24]
 5 Aug 2006
To: jeff (JCHUMBLEY) [#8] 6 Aug 2006

It seems that a firm known as Port Engravers in West Sacramento used to do
stainless a few years ago. In fact they were listed in the 2003 SBC Business to Business
yellow pages - Phone 916-371-7317. Good Luck - Ward Stenson "never to old to learn"


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