Insulator question

[Gregjl]

Are they all called peak insulators like when the temp reaches its peak, and do they ever have to be inspected, maintained, or rebuilt?

Thanks

 

[BulletStopper]

PEEK is the type of plastic https://en.m.wikipedia.org/wiki/PEEK

It is used because it retains its chemical resistance at high temperature.


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[Gregjl]

PEEK is the type of plastic https://en.m.wikipedia.org/wiki/PEEK

It is used because it retains its chemical resistance at high temperature.


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Thanks, I thought it was some kind of cloth in there