We supply PTFE (Polytetrafluoroethlyene) for your project in small or large volume quantities. In addition we can assist in the manufacture of your product using our specialist in-house cutting machinery.
For specialist items or sizes not shown, please contact us and we will be happy to assist with your project.
PTFE Polytetrafluoroethlyene Applications
This material provides the ultimate in chemical resistance, extremes of operating temperature, very low friction and superb electrical properties. These qualities make PTFE ideal for usage in gaskets, chute linings, insulators, valve seats and ‘O’ rings. Please contact us for assistance with supply requirements and manufacturing requirements if applicable.
Specific Gravity (ATSM D792): 2.2 - 2.3
Water absorbtion saturation in water (ATSM D638): 0.02 %
Tensile strength (ATSM D638): 12 - 24 N/mm2
Tensile modulus (ATSM D638): 340 - 638 N/mm2
Elongation (ATSM D638): 100 - 500%
Flexural Strength (ATSM D790): 97 - 99 N/mm2
Flexural Modulus (ATSM D790): -
Impact - Izod Notched [23°C, 50% RH, ATSM D256]: 156 J/M
Hardness Shore D: 60-65
Melt Point (D2117): 327°C
Max allowable survive temp in air:
- for short periods (1): 300°C
- continuously for 20000hrs (2): 250°C
Minimum service temperature: -260°C
Linear thermal expansion coefficient (ATSM D696): 10012K--1x10--5
Thermal Conductivity (ATSM C117): 0.26 W/K.M
Flammability (ATSM D635): Non Flammable
UL (thickness in mm) [Tests carried out using UL-test methods by DSM EPP} (UL-94): V-0
Volume Resistivity (ATSM D257): >1018 Ohm.cm
Dialectric Strength (ASTM D149) (3): >24 kv/mm
Outside Applications - UV Resistance: A
Acids - Strong (pH < 3): A
Alkalis - Strong (pH > 11): A
Chlorinated Hydrocarbons: A
Hot Water: A
(1) Only a few hours, with little or no load applied
(2) After these periods mechanical properties reduce by approx 50%. Note, however, that service temperatures are load and time dependant.
(3) Test specimen 1.6mm thick unless otherwise stated.
Please contact us with your specialist requirements or for technical advice on your order. We have over 100 years combined experience within the elastomerics industry and are happy to help.
We are proud to be ISO9001 SGS certified. Please download our SGS certificate.
CUSTOM SIZES & ORDERS
Where standard sizes are not applicable, we manufacture and supply your custom sizes to order. Our efficient product team will ensure your receive a fast and cost effective service.