I can vouch for the quality of the Creavey O-rings but some
of those water TES o-rings from Mcmaster Carr I have seen
are not as good. This is not to say they won't work. They just
don't look as good around the joints as Creavey O-rings.

Viton is good only to 400 degrees F. The center of the rotor runs
as high as 500 degrees F. I think 400 degrees F leaves's too
little of a safety margin when 500 degrees F is available
in TES O-rings at the same price probably.

Group, There are two teflon types. PFE and PTFE. PTFE will 
tolerate higher temperature. PFE is also softer. I don't remember the
difference in temp tolerance.
Bill Jepson

I don't think that is the problem here Bill. The silicone core will only
go to 500 F. One of those two teflons will go to 800 F. I think it is PTFE.


Paul Lamar

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