PTFE stands for Polytetrafluoroethylene, which is a synthetic fluoropolymer of tetrafluoroethylene. It is a thermoplastic polymer that is a white solid at room temperature, with a density of about 2200 kg/m3 and a melting point of 600 K (327 °C; 620 °F) . PTFE is hydrophobic, non-wetting, high density, and resistant to high temperatures, making it an incredibly versatile material used across many industries. Some of its key properties include:
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Excellent Electrical Insulator: PTFE is used frequently as an insulator for wiring and cable, particularly in computer applications, since it is an excellent electric insulator and has a high melting point.
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Low Friction: PTFE has low friction, making it useful in applications where sliding action of parts is needed, such as bearings, gears, and slide plates.
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FDA Approved & Food Safe: PTFE is food grade compliant and resistant to chemicals and acids, making it an excellent choice for applications in food manufacturing and packaging.
PTFE is best known for its use in coating non-stick frying pans and other cookware, as it is hydrophobic and possesses fairly high heat resistance. However, at normal cooking temperatures, PTFE-coated cookware releases various gases and chemicals that present mild to severe toxicity. Therefore, it is important to use PTFE-coated cookware with proper care and storage to prolong its lifespan.
