Original roll polyester plastic film for electrical insulation, full name polyethylene terephthalate film, is the universal basic insulation film for electrical industries. Three core advantages: 1. High tensile strength up to 200MPa, 4-5 times stronger than DMD paper; 2. Excellent insulation with breakdown voltage ≥10kV; 3. Heat resistance up to 130℃ continuous use and 150℃ short-term tolerance. We do not simply resell master rolls but offer precision secondary slitting and rewind processing. Clients receive finished custom-width rolls ready for automatic winding machines without purchasing extra slitting equipment or bearing cutting waste.
A high-frequency transformer factory required 0.025mm ×20mm PET film with ±0.1mm width tolerance. Previous suppliers delivered inconsistent widths causing frequent winding breaks. Our slitting controls tolerance within ±0.05mm, winning stable monthly orders of 200 rolls. All our film uses virgin material from major domestic manufacturers – no recycled stock, which tends to embrittle and degrade insulation over long-term use. Test data shows thermal shrinkage ≤1.5% after 30 minutes at 150℃, fully compliant with GB/T 13542 national standard. For distributors, PET film is a core entry-level product with wide client coverage of transformer, motor and cable factories, ideal for acquiring new customers and cross-selling high-value insulation materials.
Specification Parameters
|
Parameter Item |
Technical Index |
|
Thickness Range |
0.012～0.35mm |
|
Maximum Width |
1600mm |
|
Minimum Slitting Width |
2.3mm |
|
Temperature Resistance Class |
Class B (105℃)～Class F (155℃) |
|
Breakdown Voltage |
≥7kV |
|
Thermal Shrinkage (150℃/30min) |
≤1.5% |
Application Fields
- Interlayer and inter-turn insulation of transformers
- Interphase insulation of motors
- Dielectric materials for capacitors
- Wrapping insulation for cables
- General insulation for all electrical equipment
Packaging & Transportation
Standard industrial packaging for slitted PET rolls: rigid paper tube cores to avoid roll collapse, outer PE moisture-proof wrapping, thick carton packaging. Large orders use wooden pallets for forklift handling. Each package is labeled with thickness, width, roll length, batch and production date. Export sea freight uses fumigated pallets. Trade terms EXW and FOB Wenzhou Port with complete export documents and stable logistics lead times.
Payment Terms
Standard PET film orders: 30% advance payment, 70% balance before shipment. Custom special thickness/width orders require 50% prepayment and 50% pre-delivery balance. RMB and USD settlement accepted. Tiered pricing for large long-term orders. Mixed specifications allowed to meet MOQ. Transparent pricing for sustainable long-term cooperation without hidden fees.
Factory Strength
Four high-precision slitting machines with max width 1600mm, minimum slitting width 2.3mm and ±0.1mm width tolerance for burr-free flat edges. Long-term stable raw material partnerships with major film manufacturers guarantee supply and cost advantages. Annual capacity 1,000 tons, monthly 200 tons with stock of standard thicknesses for urgent fast delivery. Products sold domestically and exported to South America, Southeast Asia, Middle East and Africa, serving hundreds of transformer, motor and wire manufacturers with market-proven quality.
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