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Re: NEON- Re: O-rings; mirror;
In a message dated 96-09-02 22:36:44 EDT, you write:
>>
>>What about Buna-N? This and Viton are what I see in many high-vac catalogs.
>
>What about Fetfe? (or however you spell it)
>Morgan (the anti-spelling guy)
Glad you asked. Buna-N is NOT recommended for any high-vacuum applications
and should be avoided. Only Viton is high vacuum rated. More or less common
knowledge in vacuum tech based on vapor pressure data. Don't know anything
about "Fetfe".
Jeff