I've found that _yellowing_ is a worse problem than
cleaning.
(EXTREME WARNING: Use the following techniques only on
DOUBLE-SHOT molded keytops. If you don't know what
this is, you shouldn't be doing this.)
I simply take a picture of the keyboard, remove the
keycaps, soak 'em in Formula 409, and replace them if
they are just dirty.
If they are yellowed, here's how I dealt with a
severely yellowed Hazeltine 1000 keyboard (the keys
were actually BROWN, not ivory):
1. Took pic and removed keycaps.
2. Used 400 grit wet or dry sandpaper on keycap sides,
placing sandpaper on flat suface.
3. I couldn't use the sandpaper on the tops because of
the indentation, so I got a tiny Dremel wire brush and
removed the top layer (very carefully, without gouging
or misshaping the keytop).
4. Got a buffer wheel for my drill and some automotive
rubbing compound and buffed the keys back to like-new
condition!
5. Replaced keys according to picture.
--- John Allain <allain_at_panix.com> wrote:
> Windex and a Qtip for me, even with removable
> keycaps.
> The windex goes on the Qtip, not directly on the
> keys.
>
> John A.
>
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Received on Wed May 15 2002 - 17:04:13 BST