Teflon exhibits excellent temperature resistance (both high and low), and strong corrosion resistance, making it suitable for use in high-temperature, oily, acidic, alkaline, and aqueous environments, as well as harsh working conditions. The most commonly used Teflon materials are the following five types:
a: PTFE (Polytetrafluoroethylene)
Melting Point: 327°C
Production Process: Paste extrusion (push processing) or tape wrapping
Operating Temperature: -60°C to +260°C
Characteristics: Offers excellent temperature and corrosion resistance.
Typical Conductors: Nickel-plated, silver-plated, or alloy wires.
Application: Used in relatively high-end products.
b: PFA (Perfluoroalkoxy Alkane)
Melting Point: 305°C
Production Process: Melt extrusion
Operating Temperature: -60°C to +260°C
Characteristics: Excellent temperature and corrosion resistance. Mechanical strength is superior to PTFE. Heat resistance is slightly inferior to PTFE. Production output is higher than PTFE.
Typical Conductors: Tinned, nickel-plated, silver-plated, or alloy wires.
c: FEP (Fluorinated Ethylene Propylene)
Common Name (China): F46
Melting Point: 260°C
Production Process: Melt extrusion
Operating Temperature: -60°C to +200°C
Characteristics: Good temperature and corrosion resistance. Offers good quality at a lower cost. Production output is higher than PTFE and PFA.
Application: The most common Teflon wire material on the market. The most frequently used material for Chinese non-standard and enterprise-standard wires and cables.
Typical Conductors: Tinned, bare copper, silver-plated, nickel-plated, or alloy wires.
d: ETFE (Ethylene Tetrafluoroethylene Copolymer)
Common Name (China): F40
Melting Point: 260°C
Production Process: Melt extrusion
Operating Temperature: -60°C to +150°C
Characteristics: Low specific gravity, good corrosion resistance, and excellent radiation resistance.
Production Output: Roughly equivalent to FEP.
e: PVDF (Polyvinylidene Fluoride)
Melting Point: 260°C
Production Process: Melt extrusion
Operating Temperature: -60°C to +150°C
Characteristics: Superior heat and radiation resistance. Its most notable feature is the ability to produce very thin walls (0.007 - 1.5mm), enabling it to completely replace enameled wire.
