Tefzel® 750

About
DuPont™ Tefzel ® fluoropolymer resins offer mechanical strength and toughness along with resistance to heat and chemicals. In addition, they provide easy processing, high specific dielectric strength, and a low coefficient of friction. For these reasons, Tefzel ® resins are widely used to make compact wire and cable constructions that provide long, reliable service in demanding environments. Tefzel ® 750 retains the traditional characteristics of Tefzel ® resins while providing some new property advantages, including increased flexibility and improved retention of properties after aging at elevated temperatures, higher limiting oxygen index, and long-term service life at higher temperatures than other Tefzel ® resins. Underwriters Laboratories, Inc. (UL) has rated wire insulated with Tefzel ® 750 (10 mil for 600V, 6 mil for 300V) for service in appliances at a maximum continuous operating temperature of 200°C (392°F). This rating was determined under the guidelines of UL Subject 758 for appliance wiring material. Upper service temperatures for other applications should be determined under the guidelines for those applications. Temperature ratings may not be the same as the rating for appliance wire because the test procedures are different.&&

Product Description
SupplierChemours
GenericETFE
Material StatusCommercial: Active
FeaturesExcellent Processability,Good flexibility,Low coefficient of friction,High Heat Resistance,Copolymer,Solvent resistance
AvailabilitysNorth America,Latin America,Asia Pacific,Europe
Process MethodsExtrusion

Technical Data
PHYSICALNominal valueUnitTest method
Density1.75 to 1.79g/cm³ASTM D792
Melt Flow Rate
297℃,5.0kg7.0g/10minASTM D3159

MECHANICALNominal valueUnitTest method
tensile strength ASTM D1708
23℃37.9MPaASTM D1708
140℃11.4MPaASTM D1708
160℃8.62MPaASTM D1708
180℃6.21MPaASTM D1708
200℃3.45MPaASTM D1708
Tensile strain ASTM D1708
Fracture, 23 ℃300%ASTM D1708
Fracture, 140 ℃600%ASTM D1708
Fracture, 160 ℃650%ASTM D1708
Fracture, 180 ℃600%ASTM D1708
Fracture, 200 ℃600%ASTM D1708
Bending modulus645MPaASTM D790

THERMALNominal valueUnitTest method
Melting temperature219 to 254ASTM D3159

FLAME CHARACTERISTICSNominal valueUnitTest method
Extreme oxygen index34%ASTM D2863

Process Conditions
ExtrusionNominal valueUnitTest method
Barrel 1 zone temperature288°C
Barrel 2 zone temperature316°C
Barrel 3 zone temperature321°C
Connector temperature321°C
Melt temperature332 to 335°C
Nozzle temperature332°C

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