Blog Details

Home Blog

JPFL Films Expands Custom Polyester Film Offerings for Industries

2026-01-23

From precision electronic components to everyday packaging materials, a high-performance film plays a crucial yet often overlooked role. Polyester film, also known as PET film, represents a versatile engineering plastic with exceptional properties that serve diverse industrial needs.

Applications of Polyester Films

Polyester films demonstrate outstanding physical, chemical, and electrical characteristics, making them indispensable across multiple industries. Their applications vary significantly based on thickness:

Thin polyester films (less than 50 microns):
- Electrical insulation: Widely used in wire and cable wrapping, transformer insulation, membrane touch switches, and flexible printed circuit boards, providing reliable electrical insulation.
Thick polyester films (more than 50 microns):
- Motor insulation: Primarily employed for ground and phase insulation in electric motors, ensuring stable operation.

Manufacturers also offer various optical properties, including milky white and semi-transparent options, to meet specialized requirements.

Product Portfolio

The current market offers three primary categories of polyester film products, each with distinct characteristics and advantages:

1. Coated Films

These films feature specialized functional coatings that expand their application potential.

Metal Yarn Coated Film

Description: A biaxially oriented, metallized polyester film with single or double-sided coatings. Custom colors are available with excellent water and solvent resistance.

Key Features:

Boiling water resistance maintains performance under high-temperature conditions
Superior processability facilitates efficient manufacturing
Excellent dimensional stability minimizes changes in high-temperature environments
Outstanding mechanical properties including high tensile strength and elongation

Applications: Metal yarn production

Release Film

Description: A transparent, biaxially oriented polyester film with single-sided silicone coating.

Key Features:

Enhanced anchorage compared to inline coated products
Simplified downstream processing with non-shedding silicone
Reduced equipment cleaning requirements

Applications: Label release films

2. PET Films

This diverse category serves electrical, industrial, and consumer applications with specialized variants.

J-400 Matte PET Film

Description: A matte-finished, untreated biaxially oriented polyester film.

Key Features:

Good transparency and insulation properties
Excellent processability and mechanical performance
Superior dimensional stability

Applications: Electrical insulation (wires/cables), general industrial uses

Double-sided Anti-static Matte PET Film

Description: A biaxially oriented matte polyester film with dual anti-static treatment.

Key Features:

Exceptional anti-static properties
Good transparency and processability
Excellent mechanical and dimensional stability

Applications: High-quality laminates

Single-side Corona-treated Transparent PET Film

Description: A co-extruded transparent film with corona treatment for enhanced surface properties.

Key Features:

Improved adhesion on treated surface
Good insulation properties
Excellent processability and mechanical performance

Applications: Electrical insulation and general purposes

Single-side Chemically Treated Transparent PET Film (J411)

Description: A co-extruded transparent film with medium haze and single-side chemical treatment.

Key Features:

Good transparency and insulation
Excellent processability
Strong ink adhesion

Applications: Solvent-based ink printing, electrical insulation

Double-sided Anti-static High-clarity PET Film

Description: A biaxially oriented high-transparency film with dual anti-static treatment.

Key Features:

Exceptional anti-static performance
High clarity and surface gloss
Excellent mechanical and dimensional stability

Applications: Premium laminates

3. BOPP Films

Specialized films for specific industrial requirements.

Decorative Laminate Release Film

Description: A transparent, non-heat-sealable, untreated release film.

Key Features:

High surface gloss
Excellent anti-static properties
Moderate slip characteristics
Smooth surface protects laminates from scratches
Untreated surface prevents inter-layer adhesion
Superior dimensional stability

Applications: Decorative laminate release films

Quality Assurance and Storage

All products undergo rigorous quality control to ensure performance meets technical specifications. However, due to variations in manufacturing processes and application environments, users are advised to test representative samples before full-scale implementation.

Storage Note: BOPP films may experience reduced dyne levels over time, particularly under extreme conditions. For extended storage, maintain stable temperatures below 30°C and humidity below 70% RH to preserve product integrity.

Silicone Coated PET Release Film

PET Protective Film

MLCC Release Film

Anti Static PET Film

Non Silicone Release Film

JPFL Films Expands Custom Polyester Film Offerings for Industries

JPFL Films Expands Custom Polyester Film Offerings for Industries