...
Might be easier just to get/buy a new keyboard.+1
Would graphite powder be advisable?Nope, it's going to get worse with that, as the carbon will short-circuit the leads in the switches...
This thread seems appropriate: Why did it never occur to me.. You can wash a keyboard in water.
How about dielectric grease? A thin smear on the sides of the rectangular plunger of each key to make it go more smoothly? The keyboard was balky from day one.
By the way, why don't they build them out of Teflon, or Teflon-S? Anyways, what about the dielectric grease? Or do you really like silicon spray better?

I was going to wash my old PB keyboard last weekend, until I took it apart.
The base is held on by 7 screws and when I removed that I was faced with a metal plate about 1/8" thick that covers everything to within 1/2" of the outer edge (which explains why it is so heavy), that is held in by 23 screws, at which point I put it back together.
I'm trying to think of a way to hold it upside down or at a sharp enough angle so that if I wash the keys using a wet brush any water will not get right inside.
(I should never have sacked the housekeeper.)![]()
My old HP keyboard was a heavy one too, with the metal back-panel like you described. The reason for so many screws is to make even pressure around the rubber key mat. As long as you don't over-torque them when re-installing you should be OK. Also, tighten the middle screws first and work your way outward to prevent buckling of the metal plate and/or key mat. If you buckle it, some keys will refuse to work because they can't make contact with the circuit board.It's also extremely useful to use a screwdriver with a slightly magnetic tip, and don't work over a deep carpet.
Also try to convince resident cats or kittens that their assistance with the small pieces is not required.
Thanks for the comments. It's not that I am scared of the other 23 screws but how long it would take to undo them and then later do them up, it took 20 minutes for the first 7!
It would have been alright when I could still use my right hand but I can't do that any more and I don't have a left-handed screwdriver.

Yeah, all my screwdrivers are right-handed as well.
Funny, most of mine are ambisextrous ... they'll screw up (non-directional) regardless which hand I use.
Funny, most of mine are ambisextrous ... they'll screw up (non-directional) regardless which hand I use.
Sounds confusing, how can you tell if you're coming or going?

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