Re: Leaking capacitor cleanup
- From: "pfjw@xxxxxxx" <pfjw@xxxxxxx>
- Date: 30 Apr 2007 05:58:26 -0700
On Apr 30, 6:42 am, "Rudge" <nos...@xxxxxxxxxx> wrote:
I have removed the sticky pungent liquid that has leaked from an
electrolytic capacitor using cotton buds dipped in soapy water.
Access is difficult in the cramped PCB. Some of the corrosive liquid may
remain in holes and under resistors, etc.
What should I use to flush out or 'neutralise' any remaining corrosive
contamination that is inaccessible?
Many thanks,
Rudge
If you can free up the PCB and if there are no paper objects, IF cans
or transformers, you may rinse it down with 100% volatile contact
cleaner then distilled water. The cleaner will get the hydrophobic
components, the distilled water will get the salts. Then use 91%
isopropyl alcohol to remove any water, allow to dry overnight.
Otherwise, delete the distilled water and go from the cleaner to the
alcohol. Use the cleaner sparingly so as to avoid thermal shock -
which cracks traces.
Peter Wieck
Wyncote, PA
.
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