Re: Is an early 7A26 a keeper?


On Sun, Aug 11, 2019 at 01:33 PM, Carsten Bormann wrote:

On Aug 11, 2019, at 22:31, Jim Ford <> wrote:

history behind the technology
Yes, but this leaves one curious: why did they change from polyphenylene oxide
to polysulfone?

Grüße, Carsten
I seem to recall reading that polyphenylene oxide is fairly difficult to work with from a manufacturing standpoint. That might have something to do with a switch to polysulfone.


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