Polyester Rolls 
Film Polyester Class B (130°C)
Excellent resistance to chemicals; diluted acids, current impregnation varnishes. Low resistance to concentrated acids, phenols.
Properties |
Values |
Units |
Observations |
| Density | 1,39 | g/cm³ | - |
| Water Absorption | < 0,6 | % | 24 hours in water |
| Film 25 | 24 | g/m²/24h | Film 25 μ 39,5 ºC - 100 HR |
| O2 Permeability | 40 | cm³/m²/24h | Film 25 μ - 20 ºC |
| Refractive Index | 1.64 | nD 25 | à 23 ºC |
| Tensile Strength | 1.900 | kg/cm² | Film < 25 μ |
| 1.600 | kg/cm² | Film > 25 μ | |
| Elongation | 60 à 80 | % | Film < 25 μ |
| 100 à 140 | % | Film > 25 μ | |
| Tear Strength | 18 à 20 | g | Elmendorf on film 25 μ |
| Bursting Strength | > 5 | kg/cm² | 25 Film < 25 μ thick (Lhomargy) |
| Folding resistance | > 20 000 | Pliages | Film 25 μ |
| Dard test | 400 | grammes | Film 25 μ |
| Melting point | 250 -255 | ºC | |
| Shrinkage | 1 to 3 | % | at 150 ºC (30 minutes) |
| Thermal conductivity | 3,63 X 10 (-4) | cal/sec/ºC | - |
| Thermal class (continuous usage) | -60 + 140 | ºC | - |
Properties |
Test Conditions |
Results |
Units | |
| Dielectric strength | 50 Hz sur | 25 ºC | 180.00 | Volts/mm |
| film 50 μ | 150 ºC | 126.00 | ||
| Dielectric constant |
50 Hz{ |
25 ºC | 3.0/3.1 | - |
| 90 ºC | 3.2/3.3 | |||
| 150 ºC | 3.7 | |||
|
25 ºC{ |
50 Hz | 3.0/3.1 | ||
| 1 K Hz | 2.9/3.1 | |||
| 1 M Hz | 2.8/3.00 | |||
| Dissipation factor (tg delta) |
50 Hz{ |
25 ºC | 2 x 10 -³ | - |
| 150 Hz | 5 x 10 -³ | |||
|
25 ºC{ |
50 Hz | 2 x 10 -³ | ||
| 1 K Hz | 6 x 10 -³ | |||
| 1 M Hz | 20 x 10 -³ | |||
| Volume resistivity | - | 25 ºC | 1 x 10 -17 | Ohm. cm |
| 90 ºC | 4 x 10 -16 | |||
| 150 ºC | 1 x 10 -13 | |||
| Surface resistivity | 25 ºC-50 % hR | - | 1 à 5 x 10 -14 | Ohm. cm/cm |
| Insulation resistivity | 130 ºC s/condens. | 0.5 μF | 800 - 1.00 | M Ohm. μF |
| 150 ºC on/capacitors. | 0.5 μF | 8 - 100 | ||
| The above values are typical and are only intended to be used as a guide. |
