Teflon products are also known as polytetrafluoroethylene products
As is well known, Teflon products are also referred to as ‘polytetrafluoroethylene products’, ‘Teflon products’, ‘PTFE products’, ‘tetrafluoroethylene products’, ‘Teflon products’ and ‘the king of plastics’, amongst other names. Many people are unaware that polytetrafluoroethylene is Teflon, and struggle to distinguish between Teflon and PTFE, PFA, FEP and ETFE. So today, let’s take a look at what Teflon is, and what the differences are between PTFE, PFA, FEP and ETFE.
Polytetrafluoroethylene, also known as Teflon, Teflon, Teflon, Teflon, Teflon, is a transliteration of the name of a coating; its English name is PTFE. It is primarily a fluorinated coating with polytetrafluoroethylene as the matrix resin. Polytetrafluoroethylene coatings are high-performance coatings characterised by excellent chemical inertness, heat resistance, non-stick properties, wear resistance, high electrical insulation stability and extremely low friction. They offer a range of comprehensive advantages that many other coatings cannot match.
The differences between Teflon and PTFE, PFA, FEP and ETFE:
Teflon is further classified into four types: PTFE, FEP, PFA and ETFE.
PTFE, also known as polytetrafluoroethylene, is a non-stick coating that can be used continuously at temperatures ranging from -190°C to +260°C, with a maximum operating temperature of 290–300°C. It features an extremely low coefficient of friction, excellent wear resistance and outstanding chemical stability;
FEP, also known as fluorinated ethylene-propylene copolymer, has a service temperature of 200°C. It offers excellent chemical resistance and non-stick properties; when applied as a non-stick coating, it melts and flows during baking to form a five-hole film.
PFA, also known as perfluoroalkyl compounds, forms a non-stick coating which, like FEP, melts and flows during baking to create a pore-free film. PFA offers greater rigidity and toughness, making it suitable for applications requiring non-stick properties and chemical resistance at high temperatures. It has a service temperature of 260°C.
ETFE, a copolymer of ethylene and tetrafluoroethylene, can operate continuously at 150°C. It is a tough fluoropolymer resin with excellent chemical resistance, capable of forming a highly durable coating.
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