What is the temperature resistance of PTFE gaskets?
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PTFE generally refers to polytetrafluoroethylene. Polytetrafluoroethylene (abbreviated as PTFE), commonly known as the \"king of plastics\", is a polymer synthesized by polymerizing tetrafluoroethylene as a monomer. It is described as white, waxy, semi-transparent, heat-resistant, and highly resistant to cold, able to be used over a long period at temperatures ranging from -180 to 260°C. So why can the gasket actually only withstand temperatures of around 100°C?
Up to 300 degrees Celsius; for higher temperatures, consider metal gaskets or graphite gaskets.
I think it depends on the gasket structure and operating conditions. Additionally, there are also reinforced PTFE versions. Check the manual specifically. When in use, factors such as operating condition fluctuations must also be taken into account.
Follow the standards and specifications, and also purchase high-quality gaskets that meet the standard requirements
The properties of the material and those of the product are two different things; you need to check the specifications for the product you are purchasing. We use PTFE in low-temperature applications; some products can function properly at -196°C for a long time, while others stop working after just a few days. Excluding installation factors, it’s mainly a product issue. It is believed the same is true for the high-temperature range.
There are also many different grades of PTFE from various manufacturers, and their properties certainly vary