Custom PTFE Teflon Film

Polytetrafluoroethylene (PTFE) film is renowned for its exceptional properties, making it a highly sought-after material in various industries. PTFE, often known by the brand name Teflon, is recognized for its chemical inertness, thermal stability, and low friction.

1. Thermal Stability

PTFE film exhibits unparalleled thermal stability, maintaining its properties across a wide temperature range.

  • Melting Point: 327°C
  • Continuous Use Temperature: -200°C to 260°C
  • Short-term Heat Resistance: Up to 300°C

This remarkable thermal stability makes PTFE film ideal for applications involving extreme temperatures, such as in aerospace and industrial processes.

2. Chemical Inertness

PTFE film is chemically inert to almost all chemicals, which makes it highly suitable for use in aggressive chemical environments.

  • Chemical Resistance: Resistant to nearly all acids, bases, and solvents
  • Permeability: Extremely low permeability to gases and liquids

This chemical resistance ensures that PTFE film can be used in applications where other materials would degrade or fail, such as in chemical processing and storage.

3. Electrical Properties

PTFE film possesses excellent electrical insulation properties, which is why it is extensively used in the electronics industry.

  • Dielectric Constant: 2.0 (@1 MHz)
  • Dielectric Strength: >200 kV/mm
  • Volume Resistivity: >10^18 Ω·cm

These properties make PTFE film an ideal choice for high-frequency and high-voltage electrical insulation applications.

4. Low Friction

PTFE film is well-known for its very low coefficient of friction, which makes it useful in applications requiring low wear and high lubricity.

  • Coefficient of Friction: 0.05 to 0.10

This low friction property is particularly beneficial in applications like sliding bearings, gaskets, and seals, where reducing wear and tear is crucial.

5. Mechanical Properties

While PTFE film is relatively soft compared to other engineering plastics, it still offers sufficient mechanical strength for many applications.

  • Tensile Strength: 20 to 30 MPa
  • Elongation: 200% to 400%
  • Hardness (Shore D): 50 to 55

These mechanical properties, combined with its other features, make PTFE film suitable for a variety of demanding applications.

6. Non-Stick Properties

PTFE film is famous for its non-stick surface, which is widely utilized in cookware and industrial applications.

  • Surface Energy: Very low, making it difficult for other substances to adhere

This non-stick characteristic is not only beneficial in cooking but also in industrial processes where material build-up must be minimized.

7. Weather and UV Resistance

PTFE film has excellent resistance to weathering and UV radiation, ensuring long-term durability in outdoor applications.

  • UV Resistance: Excellent
  • Aging Resistance: Does not degrade over time with exposure to sunlight and environmental conditions

This resistance ensures that PTFE film can be used reliably in outdoor and harsh environmental conditions.