China pet film production companies, polyester film manufacturer-Yuxing Film

Heat-resistant Film

CY30YS Heat Aging Polyester Film

A translucent polyester film with excellent physical and mechanical properties, heat aging resistance, and good electrical insulation performance. It has passed third-party long-term heat resistance assessment with TI: 130.5, and is mainly suitable for motor slot insulation, turn-to-turn insulation, bus insulation products, and long-term electrical insulation applications in high-temperature and high-humidity environments.

Heat aging resistance

Electrical insulation

TI 130.5

Motor insulation

Bus insulation

Product Model:

CY30YS

Key Highlights

Long-term heat resistance

Passed third-party long-term heat resistance assessment with TI: 130.5.

Good electrical insulation

Suitable for motor slot insulation, turn-to-turn insulation, and bus insulation products.

Suitable for high-temperature and high-humidity environments

For long-term electrical insulation applications in such environments.

Defined thickness range

Standard thicknesses are 125μm, 150μm, 188μm, and 250μm.

Technology & Advantages

Electrical insulation materials for motors, bus products, and high-temperature/high-humidity environments require long-term heat aging resistance, electrical insulation, and mechanical stability. CY30YS is a translucent polyester film designed for long-term heat-resistant electrical insulation applications.

Core Values

Heat aging resistance:
Passed third-party long-term heat resistance assessment with TI: 130.5. Ensures reliable performance under prolonged high-temperature exposure.

Electrical safety:
Provides electrical strength (61-81 V/μm) and volume resistivity (≥1.0×10¹⁴ Ω·m) for reliable insulation against leakage and breakdown.

Application focus:
Designed for motor slot insulation, turn-to-turn insulation, and bus insulation in high-temperature, high-humidity environments.

Applications

Motor slot insulation

Used in motor slot insulation structures.

Turn-to-turn insulation

Used for turn-to-turn insulation in motors or coils.

Bus insulation products

Used in bus insulation product structures.

High-temperature and high-humidity electrical insulation

Suitable for long-term electrical insulation applications in high-temperature and high-humidity environments.

Technical Specifications

Properties	Unit	Standard	Typical Value
Thickness	μm	GB/T 13542.2-2021	125 / 150 / 188 / 250
Tensile Strength - MD	MPa	GB/T 13542.2-2021	159 / 168 / 186 / 188
Tensile Strength - TD	MPa	GB/T 13542.2-2021	162 / 154 / 173 / 176
Elongation at Break - MD	%	GB/T 13542.2-2021	121 / 124 / 135 / 140
Elongation at Break - TD	%	GB/T 13542.2-2021	100 / 110 / 120 / 125
190°C, 6 days later - MD	%	TDS	12 / 18 / 14 / 22
190°C, 6 days later - TD	%	TDS	21 / 23 / 22 / 33
Heat Shrinkage @150°C, 30min - MD	%	TDS	1.1
Heat Shrinkage @150°C, 30min - TD	%	TDS	0.1
Electrical Strength	V/μm	GB/T 1408.1-2016	81 / 76 / 66 / 61
Volume Resistivity	Ω·m	GB/T 31838.2-2019	≥1.0×10¹⁴

Remark: Values above are typical TDS values and are not guaranteed values. MD refers to machine direction and TD refers to transverse direction. Volume resistivity is a type inspection item; other items are delivery inspection items.

Packaging & Logistics

Storage Conditions

Store the product in a clean, dry, and ventilated place.

Storage Environment

Keep away from fire, heating sources, and direct sunlight.

Pallet

Fumigation-free wooden pallets suitable for export transportation.

Label Information

Each roll label includes model, batch number, thickness, width, net weight, and production date for traceability.

Slitting Range

Different slit widths can be supplied according to customer laminating equipment and production requirements.

Supply Note

Regular specifications support batch supply. Lead time depends on order specifications, quantity, and production schedule.

Frequently Asked Questions

Q: What is CY30YS mainly used for?

A: It is mainly used for motor slot insulation, turn-to-turn insulation, bus insulation products, and long-term electrical insulation applications in high-temperature and high-humidity environments.

Q: What is the long-term heat resistance of CY30YS?

A: The TDS states that it passed third-party long-term heat resistance assessment with TI: 130.5.

Q: Can other thicknesses be customized?

A: Yes. Other thicknesses can be customized according to the customer's specific requirements.

Q: Can samples be provided for testing?

A: Yes, samples or small rolls can be provided according to project requirements for lamination, laminating and performance validation tests.

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