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Fluoroplastic Specially Oriented Film NITOFLON No.920UL

Ultra-thin, non-adhesive fluoroplastic film.

NITOFLON No.920UL is ultra-thin, non-adhesive film which does not contain any filler. Offers excellent features of polytetrafluoroethylene (PTFE).



  • Approximately twice the tensile strength and 1.5 times the breakdown voltage of NITOFLON skived film. Suitable for insulation of electric parts, especially insulating coating such as motors, transformers and field coils, as well as interlayer insulation such as spacers and slot insulation.
  • Available to make a ultra-thin film with a thickness of 20µm. Suitable for sliding surfaces of precision equipments such as cameras, calculators, and cassette recorders, and die-cutted packing.
  • Smooth surface and non-adhesive; suitable for sliding parts.


PropertyUnitCharacteristic value
No.900 ULNo.920 UL
Tensile strengthLengthwise[Mpa]5080
Breakdown voltage[%]7.411.3
Chemical resistance (weight change rate)Sodium hydroxide[%]-0.01-0.02
Nitric acid[%]+0.05+0.08
Heat resistance (weight change rate)Test temperature range 25~350°C[%]0.020.02
Dimensional variation rate100°CLengthwise[%]1.5 (contraction)3.3 (contraction)
Widthwise[%]1.2 (stretch)0.8 (stretch)
200°CLengthwise[%]2.9 (contraction)11.6 (contraction)
Widthwise[%]1.8 (stretch)2.4 (stretch)
250°CLengthwise[%]2.8 (contraction)18.5 (contraction)
Widthwise[%]1.8 (stretch)2.5 (stretch)
Water absorption rate[%]0.000.00
Heat conductivityW/(m・K) (kcal/m・h・°C)0.29(0.25)0.23(0.20)
Surface roughnessμm0.6~1.20.5


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

Experimental video

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

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