I have always just used isopropyl alcohol on Q-tips and gently rubbed the surfaces of the conductive rubber pads, and always had excellent results. I don't think that the conductive rubber loses its conductivity, but rather that the contacting surface of the rubber picks up dirt and pollutants and forms a non-conductive film that the alcohol (and very mild abrasion of the cotton Q-tip) removes. Paul Schmidt ocleide@earthlink.net -----Original Message----- >From: silverdr@wfmh.org.pl >Sent: Oct 11, 2018 11:29 AM >To: cbm-hackers@musoftware.de >Subject: keyboards contacts restoration > >I vaguely recall a discussion about repairing/renovating the conductive rubber keyboard elements and the conclusion that there are special chemicals/formulations, which are able to restore the original conductivity. But what would those be? There is this thing: > >https://www.chemtronics.com/content/msds/Cw2605tds.pdf > >But the price tag seems to be out of touch with reality. Anything tested to work well with PET/VIC/C64 keyboards that doesn't cost both arm and leg? > >-- >SD! - http://e4aws.silverdr.com/ > >Received on 2018-10-12 06:00:12
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