[sdiy] Slide pot cleaning

[Maarten]

I would not advise to use sand paper at all. You better use some 
polishing paste with a very small grain.

Op 29-4-2026 om 01:30 schreef Adam (synthDIY):
> I tackled this a few years ago, HTH
>
>
> IMG_6582.jpeg
> Roland SH-09 slide pot rehab 
> <https://mezzoauto.blogspot.com/2017/05/roland-sh-09-slide-pot-rehab.html>
> mezzoauto.blogspot.com 
> <https://mezzoauto.blogspot.com/2017/05/roland-sh-09-slide-pot-rehab.html>
>
> <https://mezzoauto.blogspot.com/2017/05/roland-sh-09-slide-pot-rehab.html>
>
>
>
> A
>
>
>> On 28 Apr 2026, at 21:53, rburnett at richieburnett.co.uk wrote:
>>
>> Can anyone recommend a good process for cleaning dust our of slide 
>> potentiometers on an old Roland SH-09?
>>
>> The synth was stored underneath a bed in the spare room when we moved 
>> house about ten years ago, and I *thought* it had a dust cover over 
>> it!  It turns out it didn't (>.<)  and the slide pots are in quite 
>> bad shape now.
>>
>> The synth is functional but the sliders feel scratchy and there is 
>> obviously intermittent electrical contact because cutoff, LFO rate, 
>> etc jump around a lot when the sliders are adjusted.  The slide 
>> switches are okay, and the keys aren't too bad after a bit of use.
>>
>> I've removed the front panel and also found that there is some sort 
>> of black felt/foam sheet that was obviously originally meant to be a 
>> dust shield for the slide pots.  The problem is that this material 
>> has become brittle and literally crumbles upon touching.  Can anyone 
>> recommend a good material to replace this with?
>>
>> If I can fix the pots with a squirt of some magic spray that would be 
>> fantastic, but I'm also prepared to de-solder then and carefully open 
>> them up for cleaning if that is what is required.  I would rather 
>> take time to do the job properly, but not sure what is the best way 
>> to proceed?  I have access to a dry compressed-air line, dish soap, 
>> cotton buds, Isopropyl alcohol, acetone, silicone grease, 
>> soldering/de-soldering tools, etc, but don't want to risk making the 
>> problem worse without asking for advice first.
>>
>> Thanks in advance for any advice,
>>
>> -Richie,
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