For inventory control purposes, product name may be followed  by an X.  Products labeled FEP 9302 and FEP 9302 X are equivalent,  and all information in this document is applicable to both. 

Typical Applications  

Tubes, piping, linings, bellows, valves, and other components for  the chemical industry. Jackets for wire and cable applications  demanding a high degree of stress crack resistance.  

Description  

Teflon™  FEP 9302 is a melt-processible copolymer of  tetrafluoroethylene and hexafluoropropylene, without additives,  that meets the requirements of ASTM D 2116 Type IV.

It offers the excellent combination of properties characteristic of  Teflon™  fluoroplastic resins: non-aging characteristics, chemical  inertness, exceptional dielectric properties, low flammability,  heat resistance, toughness and flexibility, low coefficient of  friction, non-stick characteristics, negligible moisture absorption,  and excellent weather resistance.  

Teflon™  FEP 9302 is used in the chemical industry for  applications, such as chemical linings, bellows, valve components,  pipes, and tubing. In demanding wire and cable applications,  requiring a very high degree of stress crack resistance, it can be  used as a material for jacketing.  

Thanks to its combination of viscosity and stress crack  resistance, it can be processed at faster rates and higher  extrusion line speeds than many FEP grades with comparable  

stress crack resistance performance. Stress crack resistance is an important element in establishing  end-use performance. Experience shows that the MIT folding  endurance or flex life test, performed on a thin film of resin, has  established a good correlation with extensive cable testing. The  higher the MIT flex life, the higher the stress-crack resistance  of the resin. MIT test results should be viewed as a guide to  comparative performance of the various grades of resin. We  recommend that for applications involving repeated thermal and  flex cycling, specific tests on the final cable always should be  undertaken. See also the Chemours bulletin, “Grade Selector for  Wire and Cable Applications.”