FEP tubing possesses many equivalent features to PTFE but with certain traits that allow it to go where PTFE tubing cannot.
Fluorinated ethylene propylene, or FEP, was the first melt-processable perfluorinated polymer following the development of PTFE. Like PTFE, FEP tubing shows exceptionally broad chemical resistance with very low coefficient of friction. FEP tubing, however, is more flexible than PTFE and is optically transparent. For areas where temperature is a consideration, FEP can be used up to 204 °C (400 °F) and is UL 94 V-0 flame resistant.
FEP shows extremely low absorption of solvents. This Class VI biocompatible material can be used within the body as well as in areas including aerospace, fiber optics, electrical applications, and much more. FEP is heat-formable and weldable allowing it to be mated to other plastics for connections or unions. Multilumen tubing, custom profiles, and colors are also available with FEP.
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