Something You Need to Know About the Originator of Gaskets—PTFE Gaskets

Jul 19, 2025

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Recently, many customers make inquiry to us for Teflon gaskets. We believe many people have the same questions.ZeYao is here to give you the full scoop on what Teflon gaskets are.

While some may be more familiar with the name "Teflon gasket," it's also known as a polytetrafluoroethylene (PTFE) gasket. Made from PTFE-often called the "King of Plastics"-this gasket is hailed as the "original" of gaskets in the fastener industry.

Besides "Teflon," PTFE is also called "Teflon," "Teflón," "Fluon," and "Halon," but these are just different translations from English-they all refer to the same material.

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Why PTFE gasket is called the"Originator" of Gaskets?

The uniqueness of PTFE gaskets comes from the exceptional properties of PTFE . This high-molecular polymer, synthesized from tetrafluoroethylene monomers, boasts outstanding heat and cold resistance, performing reliably in temperatures ranging from -180°C to 260°C. It's also highly resistant to acids, alkalis, and nearly all organic solvents, making it virtually insoluble in any chemical. Additionally, PTFE has an extremely low friction coefficient, giving it excellent lubricity.

 

With above the performance, so PTFE gaskets offer:

--Wide temperature adaptability-They function perfectly in environments from -180°C to 250°C without losing performance.

--Superior mechanical toughness-Even at -196°C, they maintain a 5% elongation rate.

--Exceptional aging resistance-They have the longest lifespan among plastic gaskets.

--Low friction & self-lubrication-Reduces wear and improves efficiency.

--Non-stick surface-PTFE has the lowest surface tension of any material, preventing adhesion.

--Excellent resilience-Maintains sealing performance under extreme conditions like high/low temperatures, high vacuum, shock, and vibration.

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Where Are PTFE Gaskets Used?

The applications of PTFE gaskets align with their properties. They're commonly used in sealing connections where temperature and pressure fluctuate drastically, such as in pipelines, valves, heat exchangers, and pumps. Industries like petroleum, chemical, pharmaceutical, power generation, steel, machinery, metallurgy, shipbuilding, nuclear energy, aerospace, instrumentation, and computing rely on them.

In chemical and pharmaceutical industries, their resistance to acids, alkalis, high temperatures, and solvents makes them indispensable.

Now that you know all about PTFE gaskets-the "original" of gaskets with unmatched performance-are you ready to put them to work?

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