Fluoroplastic Product:
NITOFLON Specially Oriented Film 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).
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- 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.
- 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.
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| Property | Unit | Characteristic value | JIS K 7137-2
(Ref.) |
| No.900 UL | No.920 UL |
| Thickness |
[mm] |
0.05 |
0.05 |
0.05±0.01 |
| Tensile strength |
Lengthwise |
Mpa |
50 |
80 |
14.7 or more |
| Widthwise |
Mpa |
11 |
30 |
－ |
| Elongation |
Lengthwise |
[%] |
360 |
120 |
100 or more |
| Widthwise |
[%] |
340 |
250 |
－ |
| Breakdown voltage |
[kV] |
7.4 |
11.3 |
3.5 or more |
Chemical resistance
(weight change rate) |
Sodium hydroxide |
[%] |
-0.01 |
-0.02 |
Must be no change in appearance and weight variation rate of less than ±0.5%. |
| Acetone |
[%] |
+0.02 |
+0.02 |
| Nitric acid |
[%] |
+0.05 |
+0.08 |
| Heat resistance (weight change rate) |
Test temperature range 25-350°C |
[%] |
0.02 |
0.02 |
Weight reduction rate must be less than 0.05%. |
| Dimensional variation rate |
100°C |
Lengthwise |
[%] |
1.5 (contraction) |
3.3
(contraction) |
－ |
| Widthwise |
[%] |
1.2 (stretch) |
0.8
(stretch) |
| 200°C |
Lengthwise |
[%] |
2.9 (contraction) |
11.6
(contraction) |
| Widthwise |
[%] |
1.8 (stretch) |
2.4
(stretch) |
| 260°C |
Lengthwise |
[%] |
2.8 (contraction) |
18.5
(contraction) |
| Widthwise |
[%] |
1.8 (stretch) |
2.5
(stretch) |
| Water absorption rate |
[%] |
0.00 |
0.00 |
－ |
| Heat conductivity |
W/(m・K)
(kcal/m・h・°C) |
0.29(0.25) |
0.23(0.20) |
－ |
| Surface roughness |
µm |
0.6～1.2 |
0.5 |
－ |
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* The above values are sample observed values, not the guaranteed performance. |
