Low Temperature Low Shrinkage BOPET Base Film Heat Stabilized for Electrical Insulation

Product Description / Production Introduction

This low temperature low shrinkage BOPET base film is a heat stabilized biaxially oriented polyethylene terephthalate film engineered for electrical insulation and precision electronic applications. A dedicated heat stabilization process delivers very low thermal shrinkage of no more than 0.5 percent at 150 degrees Celsius for 30 minutes, so the film keeps its dimensions and flatness through low temperature and elevated temperature processing alike, without curling or distorting. High tensile strength of at least 200 MPa in machine and transverse directions supports stable, break free running on high speed coating, slitting and converting lines, while uniform thickness keeps electrical and mechanical performance consistent roll after roll. The film offers excellent dielectric strength for capacitors, motors, transformers and flexible circuits, and continuous heat resistance up to 180 degrees Celsius supports demanding thermal processes. Available in ultra thin 4.5 to 12 micron grades with customized widths and roll lengths, this heat stabilized shrink resistant base film is ideal for electrical insulation and precision electronics manufacturing.

Parameter Table

Key Features

Low Thermal Shrinkage

A dedicated heat stabilization process gives the film very low thermal shrinkage, so it keeps its dimensions and flatness through heat and low temperature processing without deforming, curling or distorting.

High Dimensional Stability

Excellent dimensional stability keeps the web flat and registration accurate, so printing, coating, laminating and converting stay precise from the first metre to the last and from roll to roll.

Low Temperature Processing Compatible

The film performs reliably in low temperature processing, helping converters reduce energy use and protect heat sensitive layers while still holding tight dimensional tolerance.

Heat Stabilized, Heat Resistant

Heat stabilized construction allows continuous use up to 180 degrees Celsius, making the base film stable through hot stamping, metallization, coating and other thermal processes.

High Tensile Strength

Tensile strength of at least 200 MPa in both machine and transverse directions supports stable, break free running on high speed coating, slitting and converting lines.

Uniform Thickness and Gauge Control

Thickness is tightly controlled across the web, so coating weight, optical performance and converting behaviour stay consistent and predictable roll after roll.

High Transparency and Low Haze

High clarity with low haze keeps the film bright and clean, supporting accurate inspection and sharp downstream printing or coating.

Solvent and Chemical Resistance

Good resistance to common solvents and chemicals protects the film during printing, coating and lamination, helping maintain surface quality and performance.

Excellent Electrical Insulation

The film offers high dielectric strength and stable electrical performance, making it a reliable base for capacitors, motors, transformers, flexible circuits and other electronic insulation components.

Ultra Thin 4.5 to 12 Micron Gauge

Ultra thin grades reduce material use and help miniaturise electronic components while keeping the strength and insulation performance required in demanding applications.

Application Scenarios

Electrical Insulation - Base film for electrical insulation layers in motors, transformers and electronic devices where low shrinkage and high dielectric strength are essential.

Capacitors - Ultra thin heat stabilized film for film capacitors, where consistent thickness and low thermal shrinkage ensure stable capacitance and long life.

Motors and Transformers - Slot, layer and interphase insulation in motors and transformers, where heat resistance up to 180 degrees Celsius and dimensional stability are required.

Flexible Circuits and Electronics - Carrier and insulation film for flexible circuits and electronic components that demand precise thickness and stable electrical properties.

Precision Coating and Converting - Reliable base for precision coating, slitting and converting where flatness and uniform gauge are critical to yield.

Electronic Manufacturing - A dependable heat stabilized base film for general electronic manufacturing and component protection.

FAQ

Q: Are you a manufacturer or trading company?

A: We are a manufacturer of BOPET film located in Hefei city, Anhui province, China, running our own production lines and exporting to the Americas, Europe and Southeast Asia.

Q: What is the minimum order quantity for this BOPET base film?

A: Our typical MOQ is usually 500 kg per specification. For trial orders and sample evaluation we can be flexible, so please tell us your target thickness, width and application.

Q: What is your lead time?

A: Sample making takes about 3-7 working days, and mass production normally takes 10-25 working days after order confirmation, depending on quantity and specifications.

Q: Can I get free samples for testing?

A: Yes, A4 sample sheets are free of charge. Please specify the thickness and the application so we can select the right grade for you.

Q: What shipping terms do you support?

A: We support EXW, FOB, CIF and DDU terms, and we can arrange sea, rail or air shipment according to your schedule.

Q: What is your payment method?

A: We accept L/C, D/A, D/P, T/T, Western Union and ; specific terms are negotiable based on order value.

Q: Can I customize thickness, width and core?

A: Yes. We customize thickness, width from 500 to 1600 mm, 3 inch or 6 inch paper core, roll length and packing style to match your production line.

Q: Why choose this film for electrical insulation?

A: Its heat stabilization gives very low thermal shrinkage (<=0.5% at 150C/30min), high dielectric strength and uniform ultra thin gauge, so electrical components stay dimensionally stable and perform reliably through heat and low temperature processing.

Company Profile

Anhui Guofeng New Materials Co., Ltd. is a listed plastic film manufacturer, established on September 23, 1998 and listed on the Shenzhen Stock Exchange (stock code 000859) on November 19, 1998. The company is headquartered in Hefei city, Anhui province, China, with around 1,500-1,700 employees.

Guofeng operates 4 BOPP production lines, 3 BOPET lines, 4 heat-sealable film lines and 12 PI film lines, with an annual output of 180,000 tons. The company specializes in packaging and electronic information materials, exporting to the Americas, Europe, Southeast Asia, Japan and Korea.

As a National High-tech Enterprise with an AAA quality credit rating and the China Famous Trademark "Guofeng", the company holds ISO9001, ISO14001, OHSAS18001, QS, ISO/TS16949 and UK EKAS certifications, and its films meet FDA and EU food contact standards.

Company Advantage

• Listed Manufacturer: Shenzhen Stock Exchange listed company (000859) with stable supply
• Large Capacity: Annual output of 180,000 tons backed by 3 BOPET lines
• Strict Quality Control: ISO9001, ISO14001 and ISO45001 certified production
• R&D Strength: Dedicated R&D team for customized BOPET film solutions
• OEM/ODM Service: Customized width, core size, roll length and packing available
• Global Compliance: FDA/EU food contact compliant, SGS audited factory

Our Certificate

ISO9001, ISO14001, ISO45001 (OHSAS18001), QS, ISO/TS16949, UK EKAS; products compliant with FDA and EU food contact standards.