HOSTAPHAN® polyester films for electrical insulation

Due to its high electrical resistivity, polyester has been used as electrical insulation for many years. Biaxially drawn HOSTAPHAN® film combines this property with high mechanical strength.

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Our films offer these advantages:
  • high dielectric constant
  • high dielectric strength
  • dimensional stability
  • high temperature resistance
    • thermal class B
  • high tensile strength
  • good elongation to break
  • very good chemical and electrical stability
  • low fraction of extractables
Typical applications:
  • insulation for electrical equipment (motors, transformers)
  • flexible printed circuits (FPCs)
  • flexible flat cables (FFCs)
  • membrane keypads
  • wiring and cables

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