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Fluoroplastic Adhesive Tape NITOFLON No.903UL

Class H electrical insulating adhesive tape using fluoroplastic film.

Single surface treated polytetrafluoroethylene (PTFE) film-base tape coated with silicone adhesive with excellent heat-resistance. Along with great electrical characteristics, the tape has a number of excellent features such as heat resistance, chemical resistance, low friction coefficient and non-adhesiveness.



  • UL510 certified.
  • Environment-friendly and complies with Notification No.20 of the Ministry of Health, Labor and Welfare.
  • Superior in mold-releasing and sliding property.
  • Uses the Class H insulating material.
  • Superior flame resistance.
  • Non-adhesive side of the tape offers excellent characteristics of polytetrafluoroethylene, such as electrical property, resistance to heat, weather, chemical, and water (water-shedding), low friction coefficient and non-adhesiveness.
  • Can smoothly adhere, wind, band and seal, just like regular adhesive tapes.



Product No.ColorThickness [mm]Maximum width [mm]Length [m]
Product No.ColorThickness [mil]Maximum width [in]Length [yd]


Property Unit No.903UL
Thickness mm 0.08 0.13 0.18 0.23
Thickness mil 3.1 5.2 7.1 9.1
Tensile strength N/19mm 55 93 160 210
Adhesive strength*1 N/19mm 5.6 7.1 7.4 8.7
Rewinding force N/19mm 4.4 5.8 7.1 8.9
Tensile strength oz/in 264 447 769 1009
Adhesive strength*1 oz/in 27 34 36 42
Rewinding force oz/in 21 28 34 43
Breakdown voltage kV 8 11 14 15
Breakdown voltage V 8000 11000 14000 15000
Temperature range °C -60~200°C
Temperature range °F -76~392°F


  • *The above values are sample observed values, not the guaranteed performance.


  • For heat-resistant masking.
  • For heat-sealing.
  • For heat-resistant electrical insulation.

Experimental video

Heat Resistance
Sliding Properties
Electrical Insulation
Chemical Resistance
Mold Release Properties
Weather Resistance

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