PTFE Tube

PTFE Tube offers exceptional chemical resistance, extremely low friction, and high thermal stability in a hollow cylindrical form ideal for transporting corrosive or high-purity fluids. Its non-stick surface prevents buildup, while its dielectric strength supports use in electrical insulation. Industries employ PTFE tubes in chemical processing, medical device manufacturing, and aerospace systems. Specific applications include lining for corrosive chemical pipelines, catheter tubing for biocompatible fluid delivery, and insulation sleeves for high-voltage wiring in spacecraft. In research, PTFE tubes are used to develop microfluidic devices for aggressive solvents, investigate frictionless fluid transport, and prototype corrosion-resistant heat exchanger coils. The combination of inertness, temperature tolerance, and form adaptability makes PTFE tubes indispensable in advanced industrial and laboratory systems.

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Tolerance

Properties

Reference & Citations

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Tolerances

Tube

Outside Diameter	=<2mm	±10%
Outside Diameter	=<5mm	±10%
Outside Diameter	>5mm	±10%
Wall Thickness		±20%

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

Mechanical Properties

Element	Value
Coefficient of friction	0.05-0.2
Hardness - Rockwell	D50-55 - Shore
Poisson's ratio	0.46
Elongation at break( % )	400
Tensile modulus( GPa )	0.3-0.8
Izod impact strength( J m⁻¹ )	160
Tensile strength( MPa )	Oct-40

Electrical Properties

Element	Value
Dielectric constant @1MHz	2-2.1
Dissipation factor @ 1MHz	0.0003-0.0007
Dielectric strength( kV mm⁻¹ )	50-170
Surface resistivity( Ohm/sq )	10¹⁷
Volume resistivity( Ohmcm )	10¹⁸-10¹⁹

Physical Properties

Element	Value
Flammability	V0
Radiation resistance	Poor
Refractive index	1.38
Resistance to Ultra-violet	Excellent
Limiting oxygen index( % )	95
Water absorption - over 24 hours( % )	0.01
Density( gcm⁻³ )	2.2

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	120
Heat-deflection temperature - 1.8MPa( C )	54
Lower working temperature( C )	-260
Upper working temperature( C )	180-260
Specific heat( J K⁻¹ kg⁻¹ )	1000
Thermal conductivity( W m⁻¹ K⁻¹ )	0.25@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	100-160