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Zhejiang Lanyi New Material Technology Co., Ltd.

PI Film Supplier | High Temp 400°C · Excellent Electrical Insulation · High Mechanical Strength

Product Overview

PI (Polyimide) film is a high-performance film made from polycondensation of pyromellitic dianhydride and aromatic diamines. It is one of the most advanced organic polymer films available, with a continuous service temperature of 300°C (short-term up to 400°C+). Offering outstanding electrical insulation, mechanical strength, and chemical stability, it is indispensable in electronics, aerospace, flexible displays, and other cutting-edge industries.

Typical Applications
  • Flexible Printed Circuits (FPC) — Flexible circuit substrates for smartphones and wearables
  • Aerospace — High-temperature cable insulation, lightweight spacecraft structural materials
  • Flexible Displays — AMOLED display substrates and cover films
  • Motor Insulation — Slot and phase insulation for high-voltage motors and transformers
  • High-temperature Tape Substrates — PCB soldering protection tape, battery tab insulation tape
  • 5G Communications — High-frequency, high-speed circuit substrates
Customizable Specifications
  • Thickness: 12.5μm ~ 125μm (customizable)
  • Width: Slit to customer requirements
  • Type: Standard / Thermosetting / Coverlay (with adhesive)
  • Options: Black / Yellow / Transparent / Flame-retardant
Why Choose Us?
  • Continuous service temperature 300°C, short-term up to 400°C+
  • Excellent electrical insulation and dimensional stability
  • High mechanical strength and tear resistance
  • Available as FPC substrate, coverlay, and other forms
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