Miscellaneous

PTFE tubing

Benetech delivers a wide range of PTFE tubing (and modified PTFE). Smooth or convoluted (spiral or parallel), in metric, inch and AWG sizes.

 

PTFE tubing can be delivered on straight lengths, coils or spools, cut lengths and pre-formed parts. The natural colour of PTFE tubing is milky white until slight transparent.

 

In our program we supply thinwall PTFE tubing clear and spaghetti tubing in many colors. Thinwall PTFE tubing in diameters from 0.25 till 25mm and spaghetti tubing between 0.25 and 8.25mm.

Key properties of PTFE tubing

  • Excellent chemical resistance
  • Working temperature -190°C to +260°C
  • Greatest resistance to fatigue (Wöhler curve)
  • FDA approved
  • Flame resistant - UL94V0
  • No stick
  • Low coefficient of friction
  • UV-resistant (does not age)
  • Not hygroscopic (water absorption < 0,01%)
  • Very good dielectric insulation properties Properties of PTFE can be improved by adding additives as carbon, graphite, glass etc.

Mechanical properties PTFE tubing

Property

Specification

Value

Continuous working temp.

Maximum

260°C

Chemical resistance

Excellent

Specific gravity

D 792

2.14 -2.20 g/cmE

Dielectric constant

D 150 at 10³ Hz

2.1

D 150 at 10⁶ Hz

2.1

Dielectric dissipation factor

D 150 at 10³ Hz

0.00002

D 150 at 10⁶ Hz

0.00002

Dielectric strength

D 149

48 kV/mm

Volume resistivity

D 257

>10¹⁸ OhmWcm

Tensile strength

D 1708, D 638

25 Pma

Elongation

D 1708, D 638

>260%

Compressive strength

D 695

24 Mpa

Impact strength

D 256 at +23°C

No break

Flexural Modulus

D 790 at +23°C

620 Mpa

Tensile Modulus

D 638

550 Mpa

Hardness

D 2240

55-72

Melting (gel)point

327°C

Thermal conductivity

+23°C

0.25 W/K.m

HDT

DIN 75

Method A

122

Method B

55

Use your phone lying or check this page on a bigger screen to see the specifications.

Actual properties may change due to processing method, compound type, extruded dimensions and other variables. It is the user’s responsibility to evaluate and fully test the suitability of the product for their specific application.

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