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Ethylene tetrafluoroethylene (ETFE)

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Thermoplastic
Ethylene tetrafluoroethylene (ETFE)
Property Value in metric unit Value in US unit
Density 1.74*10³ kg/m³ 108.6 lb/ft³
Modulus of elasticity 0.8 GPa 116 ksi
Flexural Modulus 1.0 GPa 145 ksi
Tensile strength 38 MPa 5510 psi
Elongation (max.) 300 % 300 %
Compressive strength 17 MPa 2470 psi
Impact strength, notched Izod >1000 J/m >18.7 ft*lb/in
Hardness 68 Shore D 68 Shore D
Thermal expansion (20 ºC) 130*10-6 ºCˉ¹ 72*10-6 in/(in* ºF)
Thermal conductivity 0.24 W/(m*K) 1.7 BTU*in/(hr*ft²*ºF)
Melting point 265 ºC 509 ºF
Maximum work temperature 155 ºC 311 ºF
Dielectric constant 2.5 - 2.5 -
Dielectric strength 25 kV/mm 625 V/mil
Electrical resistivity 1014 Ohm*m 1016 Ohm*cm

Applications: process vessels, wire and cable coating insulation, valves, pumps, packaging films, bearings.

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