Tefzel® 207

About
DuPont™ Tefzel 207 fluoropolymer is a special-purpose resin available in translucent, 2.5 mm (0.1 in) pellets. Compared with other grades of Tefzel ®, it has a higher flow rate but still maintains a service temperature of 150°C (302°F). Tefzel ® 207 and the other Tefzel ® fluoropolymers are melt processible, modified copolymers of ethylene and tetrafluoroethylene. They are high-performance resins that can be processed at relatively high rates compared with fluorocarbon resins. They are mechanically tough and offer an excellent balance of properties. The relatively high flow rate of Tefzel ® 207 makes it uniquely suitable for high-speed processing, especially for extruded coatings and injection molding of slender, thin-walled or intricate shapes. Properly processed products made from neat Tefzel ® 207 are inert to most solvents and chemicals, hydrolytically stable, and weather resistant. Recommended upper service temperature is 150°C (302°F); useful properties are retained at cryogenic ranges. The level and stability of dielectric properties are excellent and the flame rating is V-0 by the UL94 method. Mechanical properties include outstanding impact strength, cut-through, and abrasion resistance. Statements, or data, regarding behavior in a flame situation are not intended to reflect hazards presented by this or any other material when under actual fire conditions. Typical End Products Tefzel ® 207 is ideal for many end products, including electrical components such as sleeving, coil forms, sockets, connectors, and switches; lab ware such as tubing, valves, containers, and fasteners; battery or instrument components that require chemical inertness; and mechanical parts. The high melt flow rate of this product makes it ideal for injection molding and thin wall extrusion.&&

Product Description
SupplierChemours
GenericETFE
Material StatusCommercial: Active
FeaturesWeather resistance is good,Good flexibility,High impact resistance,High liquidity,Good Electrical Properties,Hydrolysis stability,Copolymer,Good wear resistance,Solvent resistance
AvailabilitysNorth America,Latin America,Asia Pacific,Europe

Technical Data
PHYSICALNominal valueUnitTest method
Density1.70g/cm³ASTM D792
Melt Flow Rate
297℃,5.0kg30g/10minASTM D3159
Water absorption rate
24hr7.0E-3%ASTM D570

MECHANICALNominal valueUnitTest method
tensile strength
23℃40.0MPaASTM D3159
Tensile strain
Fracture, 23 ℃300%ASTM D3159
Bending modulus
23℃1000MPaASTM D790

IMPACTNominal valueUnitTest method
Impact strength of cantilever beam notch
23℃No Break ASTM D256

THERMALNominal valueUnitTest method
Melting temperature250 to 280ASTM D3159
Maximum operating temperature150UL 746

Electrical performanceNominal valueUnitTest method
Volume resistivity1.0E+17ohms·cmASTM D257
Dielectric strength
0.25 mm67kV/mmASTM D149
Dielectric constant
23 ℃,1 MHz2.60 to 2.80 ASTM D150
Dissipation factor
23℃,1 MHz9.0E-3 ASTM D150

FLAME CHARACTERISTICSNominal valueUnitTest method
Extreme oxygen index30 to 32%ASTM D2863

Notes
1. Typical properties: these are not to be construed as specifications.
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