Flame Retardant PET Film

Protective Film Rolls Company is a manufacturer of flame retardant pet film for electrical insulation, battery pack protection, PCB barrier layers, and electronic component separation. This UL94-rated polyester film can be supplied for VTM-0 or V-0 requirements, depending on tested thickness and final structure. Typical options include 25–250 μm thickness, ±5% thickness tolerance, treated surface tension of 38–42 dynes/cm, and stable dielectric performance for thin insulation parts.

Product Overview

This flame retardant pet film is made from PET substrate for insulation systems where standard polyester film may not offer enough flame-retardant support. It is not a general packaging film or a simple heat-resistant plastic sheet. The film is developed for electrical and electronic assemblies that need flame resistance, dielectric insulation, dimensional stability, and reliable converting performance.

For thin flexible film, VTM-0 is commonly used because the sample is tested as a vertical thin material. For thicker PET structures, multilayer laminates, or adhesive-backed insulation parts, V-0 may apply when the finished sample meets the related vertical burning requirements. In real applications, the final flame rating should be checked with the actual thickness, adhesive layer, coating system, color, and assembled structure.

Benefits

• Tested flame-retardant performance: Supports VTM-0 or V-0 structures for base film, laminates, and adhesive-backed insulation parts.
• Reliable dielectric insulation: Typical dielectric strength can reach 120–180 kV/mm for thin barriers in compact electrical assemblies.
• Battery assembly use: Suitable for cell wrapping, module side barriers, battery labels, and die-cut protection pads where insulation space is limited.
• PCB protection: Helps separate conductive areas around circuit boards and reduce short-circuit risk near components or power supply zones.
• Stable converting behavior: Runs smoothly in roll-to-roll processing, precision punching, and die-cut production, with controllable edge burr, curling, and winding tension.
• Compliance-oriented options: Halogen-free versions are available for projects requiring RoHS and REACH-oriented material selection.

What Does UL94 VTM-0/V-0 Mean for Flame Retardant PET Film?

UL94 ratings describe how plastic materials behave under controlled flame exposure. For thin flexible PET film, VTM-0 is commonly used because the material may not support itself like a rigid sheet during testing. V-0 is generally linked with thicker or more structured samples under a different vertical burning method. These ratings should not be treated as the same. Tested thickness, sample construction, afterflame time, afterglow behavior, and burning drip results should be reviewed before final material selection.

TDS

Production Line

How Can Flame Retardant PET Substrate Support Battery and PCB Insulation?

A flame retardant PET substrate is useful when an insulation layer must stay thin, flexible, and stable during assembly. In battery packs, it can be converted into cell wraps, module barriers, adhesive-backed pads, or flame-retardant labels. Around PCB assemblies, it can work as a barrier film between conductive areas or as a protective layer near electronic components. For these applications, flame rating alone is not enough. Dielectric strength, breakdown voltage, thickness tolerance, punching quality, adhesive compatibility, and final assembly testing also matter.

Applications

• Battery pack insulation barriers
• Lithium cell wrapping and module side films
• Flame retardant battery labels and protection pads
• PCB insulation layers
• Printed circuit board protection
• Power supply insulation sheets
• Transformer and motor insulation
• Cable wrapping and electrical labels
• Die-cut electronic insulation parts
• Flame retardant adhesive tape backing
• Electronic component separation layers
• Internal barriers for compact electrical assemblies

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FAQ

1. Is this flame retardant pet film the same as fireproof film?

No. It is a UL94-rated flame retardant PET film designed to reduce flame spread risk under tested conditions. It should not be described as completely fireproof.

2. Should I use VTM-0 or V-0?

VTM-0 is commonly used for thin flexible film. V-0 may apply to thicker or structured samples. The correct rating depends on tested thickness, coating, adhesive layer, and final construction.

3. Can it be used for battery insulation?

Yes. It can be used for battery pack barriers, cell wrapping, module insulation, battery labels, and die-cut protection parts after final assembly validation.

4. Can this PET film be used for PCB insulation?

Yes. It is suitable for circuit board protection, power supply barriers, and electronic component separation where flame-retardant and dielectric performance are required.