ETFE Rod

ETFE Rod is a solid cylindrical form of ethylene tetrafluoroethylene polymer, valued for its outstanding chemical inertness, mechanical strength, and broad temperature resistance. This rigid geometry offers excellent dimensional stability, enabling precise machining and structural use in high-performance engineering applications. ETFE rods are widely used in industries such as aerospace, chemical processing, electrical engineering, and renewable energy, where resistance to corrosion, UV degradation, and mechanical wear is essential. Common applications include precision insulating components for high-voltage systems, corrosion-resistant valve stems and seals, and durable structural supports in chemically aggressive environments. The rod form provides both rigidity and versatility, making it ideal for fabricating custom parts where load-bearing capacity and environmental resilience are required. In research and innovation, ETFE rod serves as a platform material for developing advanced structural, insulating, and chemically robust systems, supporting progress in cutting-edge industrial and scientific applications.

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Tolerance

Properties

Reference & Citations

each

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