Description
Detailed Introduction:
This composite insulating sheet is produced by adhesive bonding of a polyester film layer to electrical fish paper (presspaper). The polyester film thickness varies (23, 36, or 50 microns), impacting the electrical strength. It offers high dielectric properties, excellent mechanical strength, and resistance to moisture and temperature, suitable for interturn, slot, and liner insulation in motors, generators, and transformers. The acid-free adhesive promotes long-term stability without delamination or cracking. Compliance with IEC 60626-3-100 and certifications such as ISO9001, ROHS, and REACH ensure quality and environmental safety.
Technical Data Table:
6520 Polyester Film & Green Crepe Paper Flexible Laminate
This material is manufactured by laminating 6020 polyester film with electrical insulating crepe paper using adhesive bonding.
It is suitable for slot insulation, phase insulation, turn insulation, and liner insulation in motors and electrical equipment.
Appearance:
Smooth surface, free from bubbles, wrinkles, cracks, or defects affecting usage.
Dimensions:
Standard width: 1000 mm
Roll weight: 50–60 kg per roll
| No. | Property | Unit | Specified Value | ||||
|---|---|---|---|---|---|---|---|
| 1 | Nominal Thickness | mm | 0.15 | 0.17 | 0.20 | 0.25 | 0.30 |
| 2 | Thickness Tolerance | mm | ±0.0020 | ±0.0020 | ±0.030 | ±0.030 | ±0.030 |
| 3 | Basis Weight & Tolerance | g/m² | 190 ± 27 | 215 ± 32 | 250 ± 38 | 310 ± 46 | 370 ± 55 |
| 4 | Polyester Film Thickness | μm | 25 | 25 | 25 | 25 | 25 |
| 5 | Tensile Strength | N/10mm | Machine Direction (MD) | ||||
| ≥135 | ≥150 | ≥180 | ≥210 | ≥270 | |||
| After Folding (MD) | |||||||
| ≥80 | ≥90 | ≥100 | ≥120 | ≥160 | |||
| N/10mm | Cross Direction (CD) | ||||||
| ≥80 | ≥90 | ≥100 | ≥120 | ≥150 | |||
| N/10mm | After Folding (CD) | ||||||
| ≥60 | ≥60 | ≥70 | ≥80 | ≥100 | |||
| 6 | Dielectric Breakdown Voltage | kV | Before Folding ≥ 6.0 | ||||
| After Folding ≥ 5.0 | |||||||
| 7 | Normal Temperature Adhesion | — | No delamination | ||||
| 8 | Heat Aging Adhesion | — | 130 ± 2°C, 10 min: No delamination, no blistering, no adhesive flow | ||||
Note:The product specifications provided are for reference purposes only. Please refer to the actual product for final specifications. We also offer various sizes and thicknesses to meet your specific needs. For further customization, please contact us.
Applications:
Slot, interturn, and liner insulation in low to medium voltage motors and generators
Insulation for transformer coils and electrical appliances
Used in electric motors for insulation and cushioning layers
FAQ:
Q: What testing standards are followed?
A: Tested according to IEC 60626-3-100 for electrical insulation properties.
Q: Is this product compatible with automated processing?
A: Yes, it can be processed easily on automated machines for cutting and shaping.
Q: Can custom thicknesses and sizes be supplied?
A: Yes, thicknesses and roll widths can be customized as per requirements.