EWF® 4000

4000 Clear Polyester

A very durable film that offers high clarity optics, puncture resistance and dimensional stability with excellent heat resistance. Machines exceptionally well. Some gauges available in untreated, two-side chemical treated or one-side chemical/one-side corona treated depending on the application.
Typical Applications

When puncture resistance is required in a window envelope

Performance Characteristics
  • Biaxially oriented polyester film
  • Outstanding mechanical strength
  • Dimensional stability
  • High transparency
  • Chemical resistant
Primary Markets
  • Envelope windows that require a puncture resistant window
  • Direct marketing when an object is placed behind the window

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4000 Clear Polyester

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