POLYTETRAFLUOROETHYLENE - PTFE, developed in 1983, became known under the TEFLON brand owned by Dupont. Since water and many food substances containing water cannot wet PTFE, they do not stick to PTFE surfaces. Thanks to this property, PTFE is used as a non-stick surface in pans and other kitchen utensils. It is an extremely inert material and, because of this characteristic, it is used in containers and hoses that hold reactive and corrosive chemicals. When used as a lubricant, PTFE reduces friction, wear, and energy consumption in machines. Some key properties of PTFE are:
PTFE (Polytetrafluoroethylene)
The strength of the carbon-fluorine bond and the high atomic weight give PTFE a range of exceptional properties. High temperature resistance: PTFE products can continuously operate in high-temperature applications up to 260°C (500°F) without losing their physical properties, and also reliably function in low-temperature applications down to -70°C (-95°F). Excellent resistance to corrosion and chemicals. Low friction and anti-stick properties. Superior electrical properties. Over a wide frequency range, PTFE exhibits high dielectric strength, low loss factor, and very high surface resistance. PTFE can be manufactured with special techniques to be electrically conductive for anti-static use. Good mechanical properties: excellent strength at low and high temperatures; shows good resistance to stress and impact. Complete resistance to aging, moisture, and UV rays. Non-toxic and high-quality for use in the food industry.
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FEP (Fluorinated Ethylene Propylene)
FEP is a melt-processable fluorinated plastic. It shares similarities with PTFE but also has some distinct differences. Its coefficient of friction is slightly higher. It has lower continuous operating temperatures: up to 205°C (400°F) and down to -60°C (-75°F). High clarity and excellent UV resistance.
Low gas and vapor permeability.
Application areas:
PFA (Perfluoroalkoxy)
PFA is a fully fluorinated, high-purity, high-quality fluorinated plastic that can be melt-processed. PFA combines the best properties offered by PTFE and FEP. High continuous operating temperature: 260°C (500°F) and down to -70°C (-95°F). Low coefficient of friction and anti-stick properties. Excellent resistance to corrosion and chemicals. High clarity and excellent UV resistance. Longer flexibility lifespan. Low gas and vapor permeability.
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