6521 polyester film/presspaper is laminated with polyester film and presspaper. It is used as slot or liner of electrical equipment and electric cable.
Property: high dielectric property and mechanical strength.
Storage life---1 year Thickness: 0.17mm 0.20mm 0.23mm 0.25mm 0.30mm 0.35mm
Width: 1000mm color: blue, cyan, brown
Pacage: carton and pallet
· Insulation Class E (120°C)
· For E-grade motors, generators and electric appliances.
· Insulation based on slot, liner or interturn.
No. |
Index name |
number |
1 |
Thickness( mm) |
0.10 |
0.15 |
0.17 |
0.20 |
0.25 |
0.30 |
2 |
Tolerance( mm) |
±0.015 |
±0.020 |
±0.020 |
±0.030 |
±0.030 |
±0.030 |
3 |
Weight ( g/m2) |
115±17 |
190±28 |
215±32 |
250±38 |
310±46 |
370±55 |
4 |
Thickness (um) |
23 |
5 |
tensile strength N/10mm |
vertical |
Before flexible |
≥90 |
≥135 |
≥150 |
≥180 |
≥210 |
≥270 |
after |
≥70 |
≥80 |
≥90 |
≥100 |
≥120 |
≥160 |
lateral |
before |
≥60 |
≥80 |
≥90 |
≥100 |
≥120 |
≥150 |
after |
≥40 |
≥60 |
≥60 |
≥70 |
≥80 |
≥100 |
7 |
Voltage (kv) |
before |
≥6.0 |
after |
≥5.0 |
8 |
Normal caking property |
No layers |
9 |
Heating caking property |
130±2°C ,10min , no layers, no bubble |