Kapton® PST

Kapton® PST crystalline polyimide film designed for the pressure sensitive tape industry

Kapton® PST is a tough film that exhibits an excellent balance of physical, chemical and electrical properties over a wide temperature range, particularly at unusually high temperatures.

DuPont™ Kapton® PST grade polyimide film is a crystalline film designed for the pressure sensitive tape industry with improved film attributes for PST coaters. Film properties that aid in coater performance include superior point thickness and gauge control across the web, improved roll formation, and extended roll lengths. The film is available in 50, 100, 200, 300 and 500 gauges.

Features include:

  • Superior tensile strength
  • Good elongation
  • Minimal variation between MD and TD properties
  • Superior dielectric
  • UL listing
  • Long length splice-free rolls
  • Batch-to-batch uniformity
Typical Electrical Properties of Kapton® PST Film
property 50 PST 100 PST 200 PST 300 PST 500 PST test Method
Dielectric Strength,
AC volt/mil (kV/mm) Minimum
6,000 (118) 6.700 (236) 5,300 (197) 4,800 (177) 3,500 (118) ASTM D-149-81
Volume Resistivity,
Ω-cm at 200oC Minimum
1012 1012 1012 1012 1012 ASTM D-257-78
Dielectric Constant at 1 kHz Maximum 4.0 3.9 3.9 3.9 3.9 ASTM D-150-81
Dissipation Factor at 1 kHz Maximum 0.0050 0.0036 0.0036 0.0036 0.0036 ASTM D-150-81

For complete information on Kapton® PST, view data sheet.

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