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From: firstname.lastname@example.org (Bob Wilson)
Subject: Re: Washing PCB's after soldering...with what?
Date: Thu, 21 Nov 2002 04:45:59 -0000
Organization: Your Organization
X-Newsreader: WinVN 0.99.9 (Released Version) (x86 32bit)
In article <email@example.com>,
>"PCS Electronics" wrote 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 are using rosin core solder:
>I use Ethanol first, scrubbing the board thoroughly at the rosin
>residue with a solvent brush and rinsed under water. Then, I spray the
>board with 409 household cleaner; scrubbing lightly with an ordinary
>brush under running water, then use compressed air to dry it out.
>Sparkles like new.
>Jeff in AZ
One has to wonder why you are doing this, when there are so many better
methods (such as using a proper blend of solvents, or even a saponifier in
water). I often wonder why hobbyists seem to want to use the most oddball
approach to cleaning PCBs, when there is all sorts of data out there
explaining how to do it properly and simply. Well at least you're not using
brake fluid, like some guy recommended some time ago!
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