Select Page

What is a PTFE Gasket?

Question: What is a PTFE Gasket?


A PTFE gasket is a type of gasket made from Polytetrafluoroethylene (PTFE), a synthetic fluoropolymer commonly known by the brand name Teflon. PTFE is a highly resistant material that can withstand high temperatures and pressures, making it an ideal material for use in gaskets.

PTFE gaskets are known for their excellent chemical resistance, low friction coefficient, and high electrical insulation properties. They are commonly used in applications where aggressive chemicals or high temperatures are present, such as in chemical processing, food and beverage production, pharmaceuticals, and power generation.

PTFE gaskets come in various forms, including sheet gaskets, gasket tape, and pre-cut gaskets. They can be manufactured with or without fillers, such as glass or carbon, to improve their physical properties.

Some of the advantages of using PTFE gaskets include:

1. High chemical resistance: PTFE gaskets are highly resistant to a wide range of chemicals, including acids, alkalis, and solvents.

2. High temperature resistance: PTFE can withstand high temperatures without losing its physical properties or breaking down.

3. Low friction coefficient: PTFE has a low coefficient of friction, making it an excellent material for sealing applications.

4. Good electrical insulation: PTFE has excellent electrical insulation properties, making it a suitable material for electrical components.

Overall, PTFE gaskets are a reliable and versatile option for sealing applications in various industries due to their excellent properties and resistance to harsh environments.