William Sommerwerck wrote:

I suppose only one world supplier of whatever this slip clutch
material is.

It's easily obtained in the US. Buy a Banquet "chicken nugget"
frozen meal. The nuggets are indistinguishable from industrial
felt washers.

You owe me a new keyboard!!! :-)

Holding it under the shower should clean it out.


I clean a lot of keyboards with household ammonia in a spray bottle.
I stand them up, lengthwise and spray a fine mist to soften the crud.
Let it stand for a few minutes and repeat. When the crud is gone, I use
distilled water to remove the last of the ammonia and let them dry for
24 hours.