Product Description

PTFE is a popular O-Ring material which is White in color. The PTFE O-Rings are popular for use in applications which require a chemically resistant and non-compressible material.

Product Detail

PTFE is the chemically inert of the O-ring materials.


>  Resistant to most chemicals including acids, bases, oils, steam and other chemicals.

>  Very tough and abrasive resistant.

>  Has minimum friction coefficient of all know pure material
>  Non-viscous, no aging
>  Now molds can be made according to customers requirements.

However the material is not easily compressed, and therefore may not seal as easily as some of the other polymers. Its outstanding tear resistance and abrasive resistance result in its slippery surface properties that make it advantageous for use in seals in moving systems such as mass spectrometer probes and valves.


Virgin materials Properties

Properties Unit Result
Apparent density g/cm3 2.10-2.30
Tensile strength(min) MPa 15
Ultimate elongation(min) % 150
Working Temp. -180~260
Melting point 327
Produce Max Temp. 385


Filled Materials

Filled  compound  and content  by weight

Tension strength

Mpa  min

Ultimate strength % min Compresive  strength MPa  min
1 20%   glass   fiber 10 120 16
2 25%   glass   fiber 10 100 16
3 20%   glass   fiber      graphile 10 120 16
4 60%   bronze 10 80 20
5 15%   carbon   fiber 11 130 16
6 24%   bronze  12%glass  fiber   6%  graphite 9 100 16
7 15%glass  fiber   105polyikmide   5% graphite 10 120 16.7

PTFE is recommended for:

Chemical environments

Use is acidic or basic environments

Sealing of moving or sliding surfaces

PTFE is not recommended for:

Low compression vacuum sealing flanges

High vacuum seals

High temperature steam.

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