[sdiy] Ultrasonic cleaners and key grease - opinions sought!

[Roman Sowa]

Hi,
do not clean the keys in ultrasonic cleaner.
Ultrasonic can and will melt the surface of nice smooth plastic up to 
the point where it looks like splatered with solvent and bubbles.
Keys always go to water wirth soap, then smooth sponge, nothing else.
Sometimes I polish them with felt.

I've had 3 ultrasonic cleaners so far. Stay away from cheap junk that's 
good to clean eyeglasses, and they are effective in the same way 
regardless if you turn it on or off. My unit is 400W and despite being 
not the best, it does its job. I managed to melt my Hammond drawbars 
once in there, oh that was an experience!

As for key grease, I'd try teflon grease

Roman

W dniu 2017-11-15 o 15:07, Steve Lenham pisze:
> Hi,
> 
> I wondered whether I could tap into the group's wisdom on a couple of 
> things.
> 
> First, I'm tempted to invest in a small ultrasonic cleaning bath. I have 
> lots of keyboard instruments to restore, and it looks like that might be 
> a quick and easy way of cleaning the keys themselves (and much more). 
> eBay is full of cheap no-brand Chinese units, and I am curious whether 
> anyone has already tried one of them. Are they too good to be true? 
> Anyone care to recommend a particular type?
> 
> I'm aware of the risks and tradeoffs with buying this kind of cut-price 
> stuff, but there is a whole spectrum between "cheap and cheerful" and 
> "totally unusable" - hence the question.
> 
> Second, and slightly related, is the subject of "key grease", i.e. the 
> grease for key pivots when reassembling keybeds. Sellers will happily 
> charge large amounts of money for tiny amounts of this, but is there 
> really anything special about it? Does it require particular properties 
> (besides being suitable for plastic)? Silicone or silicone-free? Again, 
> recommendations would be great.
> 
> Thanks for any advice.
> 
> Cheers,
> 
> Steve L.
> Benden Sound Technology
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