PTFE Cast Film


About PTFE Cast Film

PTFE cast film (FLONFILM™ 100) is a single layer, multi-laminar film manufactured using the cast method. By virtue of this unique process, FLONFILM™ 100 PTFE film (PolyTetraFluoroEthylene) has a number of high performance features not inherent in skived tapes or extruded films.

It is uniform in material structure, exhibits outstanding chemical, physical & electrical properties and is tightly controlled in its thickness (+/-10%). Based on its capability to act as a semi-permeable membrane, FLONFILM™ 100 PTFE film is used in oxygen sensors & similar devices in bio-medical and other instrumentation.

Polyflon offers cast PTFE film in semi-finished form on standard rolls or converted into finish punched components in custom shapes ready for immediate assembly in to your device.

Technical Downloads

Technical Data for PTFE Cast Film:

  • General Properties
  • PTFE Film Availability:
General Properties Method Value
Tensile Strength (psi)
ASTM D882-54T
Elongation (%)
ASTM D882-54T
Elastic Modulus (psi)
Continuous Service
-188 °C, +250 °C
Dimensions Availability
Thickness (μm)
Standard Roll
457mm x 152m
Slit Rolls
6mm min
Polyflon Customer Survey Results

100% of customers would recommend Polyflon

We’d like to share our latest customer feedback survey, sent to all customers who bought from Polyflon Technology and Polyflon Medical in 2022. We’re delighted that 100% would recommend us, 98% said our expertise is good/excellent and, for the third year running, 100% rated our product quality as good or excellent! Take a look further […]

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