Cleaning remote membranes - best technique (IPA/servisol/...)

[jpaul]

What do you do for cleaning the touchpad membranes on remotes when they become intermittent ?

I understand they are rubber impregnated with carbon/conductive particles.
I used to use IPA, which I still use with a q-tip on the circuit board, but for the membrane, I think (like for windscreen wipers) it can remove the flexibility/destroy the rubber,
so I have used servisol switch cleaner (like for volume control/pots), or foaming type/bomb cleaners applied, also, with a Q-tip

That's a humax remote, the panasonic tv one never has an issue.


I even tried rubbing the membrane with a soft lead pencil at one point.

 

[jpaul]

so no one else has this problem ?

following this article http://www.michaelshell.org/gadgetsandfixes/keypadsiliconeoil.html

I have tried washing up liquid this time ... scrubbed with an electric toothbrush (versatile gadget for house cleaning) ... we'lll see how long fix lasts ...

 

[jpaul]

OK - hadn't realised there was much variation in design, until you had some kind of mechanical key with metal contacts,
and thought it was just down to some variation of quality of membrane / button size that might explain why my panasonic tv remote did not yet require an intervention,
unlike humax/philips/siemens-dect