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Formula: ETFE
Form: Rod
Material: Ethylene tetrafluoroethylene (ETFE)
CAS Number: 25038-71-5
Commodity: Polymers
ETFE Rods are part of our huge range of specialized rods. They’re available in 20 variations based on diameter and length. ETFE, or ethylene tetrafluoroethylene, is a fluorine-based plastic known for its high-temperature resistance, chemical inertness and low friction. Properties that mean ETFE rods are used across science and industry, from electrical insulators and chemical tubing to rollers and glide bearings. With many sizes to choose from, our ETFE rods enable customization for specialized applications.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Rod
Diameter +20% / -10%

Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Good
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Good
Greases and Oils Good
Halogenated Hydrocarbons Good
Halogens Good
Ketones Good
Electrical Properties
Element Value
Dielectric constant @1MHz 2.6
Dissipation factor @ 1MHz 0.0005
Dielectric strength( kV mm⁻¹ ) 25
Surface resistivity( Ohm/sq ) >10¹⁴
Volume resistivity( Ohmcm ) 10¹⁶
Physical Properties
Element Value
Flammability V0
Radiation resistance Fair
Refractive index 1.403
Resistance to Ultra-violet Excellent
Limiting oxygen index( % ) 30-32
Water absorption( % ) 0-0.03
Density( gcm⁻³ ) 1.7
Mechanical Properties
Element Value
Hardness - Rockwell R50
Elongation at break( % ) 250-350
Tensile modulus( GPa ) 0.8
Izod impact strength( J m⁻¹ ) 1000
Tensile strength( MPa ) 28-48
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 105
Heat-deflection temperature - 1.8MPa( C ) 70
Lower working temperature( C ) -100
Upper working temperature( C ) 150-160
Specific heat( J K⁻¹ kg⁻¹ ) 1900-2000
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.24@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 90-170

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