Heat Stabilized BOPET Film Low Shrinkage 4.5-12um Dimensional Stability Electrical Insulation Grade

Product Description / Production Introduction

This Heat Stabilized BOPET Film is a biaxially oriented polyester film specially processed through a heat stabilization step to achieve ultra-low thermal shrinkage and excellent dimensional stability. As a low shrinkage BOPET film, it maintains flatness and precise dimensions even after exposure to high processing temperatures, making it an ideal substrate for electrical insulation, motors, transformers and flexible circuits. The film retains the inherent strength, dielectric performance and chemical resistance of polyester while offering superior thermal endurance for demanding applications. Available in thin gauges from 4.5 to 12 microns with customized widths, it delivers consistent thickness control and clean, defect-free surfaces roll after roll. Manufactured under ISO9001 and ISO14001 certified production, it meets RoHS and REACH requirements for electronic applications. Converters and OEMs choose this heat stabilized polyester film for components that must hold exact dimensions through soldering, curing and lamination processes, reducing rejects and improving long-term reliability. The heat stabilization process also relaxes internal stress, so the film resists curling and wrinkling during slitting, printing and die-cutting, giving downstream processors a smooth, predictable material that runs consistently at high speed.

Parameter Table

Key Features

Ultra-Low Thermal Shrinkage

Heat stabilization process locks in dimensions, keeping shrinkage below 0.5 percent at 150 degrees C for 30 minutes.

Excellent Dimensional Stability

Film stays flat and precise through soldering, curing and high temperature lamination steps.

High Dielectric Strength

Reliable electrical insulation performance for motors, transformers and electronic components.

Thin Gauge Precision

Available from 4.5 to 12 microns with tight thickness tolerance for space-saving designs.

Heat Resistance

Withstands continuous high temperature exposure without embrittlement or deformation.

Clean Defect-Free Surface

Low gel and particle counts reduce pinhole risk in insulation applications.

Application Scenarios

Electrical Insulation - Slot liners, phase insulation and barrier layers for motors and generators.

Transformers - Layer insulation and core wrapping for transformers and coils.

Flexible Circuits - Base substrate and coverlay for flexible printed circuit boards.

Capacitors - Dielectric film for film capacitors requiring stable dimensions.

Electronic Components - Insulation spacers and shielding components in consumer electronics.

FAQ

Q: Are you a manufacturer or trading company?

A: We are a manufacturer located in Hefei city, Anhui province, China, operating our own BOPET production lines.

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

A: Our typical MOQ is usually 500 kg, depending on the exact grade and specifications you need.

Q: What is your lead time?

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

Q: Can I get free samples for testing?

A: Yes, A4 sample sheets are free of charge. Please specify the thickness and shrinkage requirement you need.

Q: What shipping terms do you support?

A: We support EXW, FOB, CIF and DDU shipping terms.

Q: What is your payment method?

A: Usually T/T bank transfer with 30% deposit and balance before shipment; other methods are negotiable.

Q: Can I customize thickness and width?

A: Yes, we offer customization on thickness, width, core size, roll length and packing style. Please share your detailed requirements.

Q: What is the thermal shrinkage value?

A: Our heat stabilized grade achieves shrinkage below 0.5 percent at 150 degrees C for 30 minutes; please contact us with your test conditions for a detailed datasheet.

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 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 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.