On Thursday, 6 February 2020 19:29:48 UTC-5, wrote:
Hardinge uses a white plastic on the dials on their lathes. This
palstic has been used for years so it must hold up well to machine
shop environments. Does anybody here know just what kind of plastic it
is? I know it is not Delrin because Delrin is too soft. I want to make
some new dials for a lathe and the white plastic would be perfect.
Thanks,
Eric

Hi, Eric:- (still have some Delrin from you..)

This guy claims they're made from Dupont Nylon Zytel

101Lhttps://www.practicalmachinist.com/vb/bridgeport-and-hardinge-mills-and-lathes/hardinge-plastic-micrometer-dials-165485/

I'm guessing it would be glass-filled nylon (polyamide) then.

Best regards,
Spehro Pefhany