Dyneon FE 5520X Terpolymer of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene 3M-Dyneon Fluoropolymers SEALANT Dyneon Fluoroelastomers have been designed to provide solutions to your unique application and processing needs. The proprietary cure system found in FE grades provides improved scorch safety over FC grades for faster curing, higher molding temperature processes. The FG grades have been FDA approved for use in food handling processes. And the FT (terpolymer) grades provide improved chemical resistance over dipolymers. Peroxide cured products are designated FLS. Dyneon™ Fluoroelastomer FE 5520X Low viscosity, low fluorine (65.5%) incorporated cure terpolymer formulated for improved low temperature flexibility over standard dipolymers and terpolymers. Ideal for automotive fuel system and oil seal applications. Low fluorine content terpolymer of vinylidene fluoride, hexafluoropropylene, and tetrafluoroethylene Good compression set resistance Improved low temper-ature flexibility over standard dipolymers and terpolymers Clean running with excellent mold release Ideal for automotive fuel system and oil seal applications Low viscosity, low fluorine incorporated cure terpolymer of of vinylidene fluoride, hexafluoropropylene, and tetrafluoroethylene. Used for automotive fuel system and oil seal applications. Provides improved low temperature flexibility, good compression set resistance, and clean running with excellent mold release. Offers improved scorch safety for faster curing, higher molding temperature processes.