[time-nuts] Completely OT: Removing electrolytics of leaking capacitors from a pcb

Ulrich Bangert df6jb at ulrich-bangert.de
Wed Jan 19 14:02:34 UTC 2011


I know this is completely out of topic but I know there are some dedicated
material experts among you. So please allow me to put the following question

Is there any good suggestion available on how to remove electrolytic coating
resulting from leaking electrolytic capacitors from a pcb? It is not a
question of good looking, the coating seems to have a real "electrical
conducting" property which is absolutely bad on higher-impedance circuitry
as to be found on a Tektronix TDS45A scope mainboard, where the problem is
encountered. The findings so far are that the classical method with
isopropanol and a brush won't work. And the internet won't give precise
answers for that problem.

Any suggestion is highly appreciated!

Best regards

Ulrich Bangert
Ortholzer Weg 1
27243 Gross Ippener 

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