PTFE gaskets, also known as Teflon gaskets, are a type of sealing material made from polytetrafluoroethylene (PTFE). PTFE is a synthetic fluoropolymer of tetrafluoroethylene, known for its excellent chemical resistance and low friction properties. PTFE gaskets are widely used in various industries for their exceptional performance in sealing applications. One of the key advantages of PTFE gaskets is their outstanding chemical resistance. PTFE is highly inert and can withstand a wide range of aggressive chemicals, including acids, bases, solvents, and corrosive gases. This property makes PTFE gaskets suitable for use in industries such as chemical processing, pharmaceuticals, and petrochemicals, where exposure to harsh chemicals is common. Another notable feature of PTFE gaskets is their low friction coefficient. PTFE has one of the lowest coefficients of friction among all solid materials, which means that it provides excellent non-stick and anti-wear properties. This makes PTFE gaskets ideal for applications where low friction and smooth operation are crucial, such as in valves, pumps, and mechanical seals. PTFE gaskets also have excellent thermal resistance. They can withstand a wide range of temperatures, from cryogenic temperatures as low as -200°C (-328°F) to high temperatures up to 260°C (500°F).