Material Highlight: Polyimide Films

What Are They?

Polyimide films are anything but ordinary. These films are engineered for long-term performance at extreme temperatures between -450° F to over 500° F over extended periods of time. So, obviously, thermal stability is a major benefit, which is why this film is so widely used in aerospace, electronics, and electrical industries when a high temperature material is required. Polyimide films possess a unique combination of properties that make it ideal for a variety of applications in a variety of different industries.

Features and benefits:

  • The ability of these films to maintain their tremendous physical, electrical, and mechanical properties over a wide temperature range immensely reduces the need for rework, helping to enable high productivity out of this product.
  • Dimensionally stable at high temperatures, which helps reduce rework, helping to enable high productivity.
  • Flame retardant, chemical and radiation resistant which helps protect surfaces to help reduce replacement costs.

Popular Polyimide Products

Kapton Polyimide Films

DuPont™ Kapton polyimide films have set the industry standard for over 45 years in high performance, reliability and durability, with a unique combination of electrical, thermal, chemical and mechanical properties that withstand extreme temperature, vibration and other demanding environments.

3M™ Polyimide Film Tape

3M™ Polyimide Film Tape 5413 with DuPont™ Kapton® polyimide film and silicone adhesive is used for PCB solder masking and other high temperature applications. This product is amber colored and 2.7 mil (69 microns) thick.

Common Applications using Polyimide Films

Polyimide films can be used in a variety of electrical and electronic insulation applications including:

  • Wire and cable tapes
  • Substrates for flexible printed circuits
  • Motor slot liners
  • Transformer and capacitor insulation
  • Magnetic and pressure-sensitive tapes
  • Dielectric Gaskets
  • Thermal Barriers
  • Heat Sink Pads
  • Automotive Sensors
  • Circuit Board Insulation

Polyimide films are a highly convertible material, making it easy for us to custom fabricate. This material can be cut, slit, and laminated into virtually any shape imaginable. SRP’s Processing Capabilities for Polyimide Films include: Die Cutting, Flash Cutting, Rotary Die Cutting, Waterjet Cutting, Laser Cutting, and Laminating.


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