Homebrew PCBs

On Mon, 1 Feb 2010, Chris wrote:

> I have been using the same bottle for about 2 years now (give or take a 
> bit).  I pour it into an old film developing tray, toss my PCB into it 
> for a couple of minutes, then return the stuff to its original bottle. 
> It certainly has NOT degraded the product's ability to tin a circuit 
> board.  As for rinsing, I put it in the sink, and run water on it for 
> about 10 to 20 seconds - cold or warm water, whatever comes out of the 
> faucet.
>
> Yes, the stuff stinks a tiny bit like rotten eggs.  Not knowing what 
> this chemical actually is, I usually do it outdoors to be safe.

That might be the thiourea giving off hydrogen sulfide.  If you think you 
can tough out that smell, you're intoxicated with it.

-- 
David Griffith
dgriffi@...

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