Teflon Encapsulated O-Ring Temperature Range 

The temperature range for Teflon encapsulated O-rings depend on encapsulation material and  O-Ring core material. Teflon thermoplastic encapsulation types FEP( FEP anacronym stands for fluorinated ethylene propylene, it is a copolymer of hexafluoropropylene and tetrafluoroethylene.) and PFA (Perfluoroalkoxy alkanes (PFA) is a copolymer of hexafluoropropylene and perfluoroethers) influence temperature resistance. Core materials like silicone, FKM or EPDM also determine use.Temperature ratings typically range from -60°C to 250°C or higher. Here is a chart to assist with determining what type of encapsulated o-ring to specify: Click here for Material Data Sheets.

.