Polytetrafluoro-ethylene (PTFE)

PTFE O-rings

PTFE O-rings from COG

Broad chemical resistance, except against liquid alkaline metals and fluorine gas under pressure. Good sliding qualities, low wear and tear. Temperature range from -200 °C to +260°C. PTFE has hardness of approximately 95 °Shore and installing these O-rings in split grooves is recommended or alternatively the use slit or sheathed types due to the low elasticity.

The properties and data given in materials summary are solely informative and general in character and not to be considered binding. Values applicable to specific cases may vary greatly depending on raw materials used and operating conditions. Please therefore contact our Applications Technology departmen before selecting any specific material to discuss with them what the optimal solution for your application need/s might be.

Teflon® is a registered trademark of DuPont in Wilmington, Delaware (USA)

All elastomer materials at a glance