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Homebrew PCBs

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Re: [Homebrew_PCBs] Etchant options?

2003-05-22 by JanRwl@AOL.COM

In a message dated 5/22/2003 11:19:54 AM Central Standard Time, 
cobra_neil@... writes:

> Also, the ammonium fumes may be a problem 
> so I'm not trying to get as much info as possible before I actually try it.

Neil:  

Be CERTAIN you either put that ammonium persulfate stuff in a GLASS 
container, or use it up FAST, if it arrives in plastic!  I bought a "minimum order" 
(what was it, 2 lb?) once; came in a plastic container with screw-lid, so I put 
it on the BOTTOM shelf of a cabinet after just TRYING some, and FORGOT about 
it.  Within six months, it had eaten through the plastic container, the bottom 
(MDF) bookshelf, and the $$ carpet below!  Dum!  Need I recall the 
"conversation" with my wife over that?????           Jan Rowland


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