FEP Properties

• Resistant to nearly all chemicals except for alkali metals, fluorine gas and some halogen complexes

• Very high stress crack resistance

• Low coefficient of friction

• Lowest critical surface energy of any plastic

• Excellent nonstick properties

• Non-wetting, hydrophobic, high contact angle with water, oleophobic

• Excellent insulator

• Low dielectric constant and dissipation and high dielectric strength over a wide range of frequencies and temperatures

• Retention of properties at temperatures as high as 204 °C (400 °F)

• Useful properties at temperatures as low as -270 °C (-454 °F)

• Outstanding low-temperature toughness

• UL 94 V-0 flame resistance

• Limiting Oxygen Index (LOI) greater than 95

• Lowest refractive index of any thermoplastic (about the same as water)

• Good transmittance of UV and visible rays

• Very low light reflection

• Good long-term weatherability with excellent resistance to sunlight and ozone

• May be used in food contact applications in compliance with FDA 21 CFR 177.1550

• Excellent toughness

• Relatively soft

• Generally low mechanical strength, lower tensile strength and creep and wear resistance than other high-end plastics

• Inferior to PTFE in some mechanical properties, such as cut-through and abrasion resistance