Underwriters Laboratory has certified DuPont ECCtreme ECA 3000 perfluoroplastic resin with a 300°C. rating for a minimum-thickness of 0.75 mm (and above).
The newly certified formulation is designed to perform in very harsh oil and gas environments. There it will operate successfully and consistently at up to 300° C. - both electrically and mechanically. ECCtreme is declared to have the "highest RTI values in the UL Plastics - Component database."