It's called double-shot moulding / molding [U.S.]
br
jez (always glad when a bit of useless knowledge can be regurgitated from the
depths and recycled)
----- Original Message -----
From: "Garth Wood" <garth@xxxxxxxxxxxxxxx>
> At 06:48 AM 09/01/2005, Chuck Norcutt wrote:
>
> [snip]
>
> > My own IBM keyboard, in continuous use since 1987, shows absolutely no
> > signs of wear on the keycaps. The lettering on the keys is just as
> > crisp as the day it was new. The lettering is somehow infused into the
> > keys and can't be simply worn off the surface.
>
>
> Actually cast all the way through, IIRC. Same trick used on the keypads of
> HP calculators etc. throughout the 80s and 90s. The quality of said HP
> products seems to have gone downhill in recent years, so I no longer know
> if they're still like that.
>
>
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