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From: "Frank Bemelman"
Subject: Re: Washing PCB's after soldering...with what?
Date: Wed, 20 Nov 2002 21:29:15 +0100
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
Organization: EuroNet Internet
NNTP-Posting-Date: 20 Nov 2002 20:32:02 GMT
"PCS Electronics" schreef in
> We're hand-soldering (small series) our PCBs and are
> wondering what would be the best chemical for washing
> the boards afterwards.
> We've tried Acetone and Ethanol, the first is way too strong as
> it melts the caps and other plastic, the second (Ethanol - alcohol)
> leaves the PCB looking very dry and ugly with white powder
> where the soldering paste used to be.
> Does anyone here have experience with this kind of stuff?
Assuming you use solder that leaves that brown resin...
Try paint 'thinner'. Take a round paintbrush, and cut the
brush down until 10mm (half an inch) is left. Dip it in
thinner and brush firmly. Repeat a few times, using a bit
more thinner to wipe all sticky stuff off the board. Now
use compressed air to blow it dry.
Thinner contains toluene. Use it near open window or
outside ;) If more than 10 boards per week, find a
better and safer solution.
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