Materials / grade-specific review
PET Insulation Film
UL94 V-0 polyethylene terephthalate film, 0.25–0.5 mm, for module-to-enclosure isolation at pack voltage.
APPLICATION & GRADE
Grade / designation: SZ-M1-PK03
Grade and specification to be confirmed
Discuss Material Requirements ↗Typical applications
Module-to-enclosure isolation
Cell-to-cell dielectric barriers
Busbar insulation
Pack-level thermal and electrical separation
Grade & supply review
Cut, punched or stamped to drawing
Material grade and plating thickness
Dielectric rating and flammability class
Prototype quantities through to production sets
Representative image. Actual material appearance varies by grade and lot — request a current photograph or sample.
About this material
Pack insulation is a dielectric problem, not a mechanical one. A 0.25 mm PET film holds off roughly 2.5 kV, comfortably above a 400 V pack’s isolation requirement even with a safety factor, and it does so at 125 °C continuous.
The failure mode to design against is not breakdown but abrasion and cut-through at cell edges. Specify V-0 material, keep edges clear of burrs, and add a second layer wherever the film crosses a weld or a cell terminal.
Documentation, controls and care
Quality controls
- Certificate of analysis per batch
- Moisture by Karl Fischer, reported per lot
- Trace metal screening
- Retained samples held for 12 months
Handling & storage
- Store in a dry environment below 30 °C, away from direct sunlight.
- Equilibrate to room temperature before opening to avoid condensation on the material.
- Dry at 60–80 °C under vacuum before use where the process requires it.
Grades on this page are references used to describe capability; they are not a fixed product list.
Specification values are typical windows compiled from public technical references and supplier
datasheets, and are provided for selection guidance only. The specification delivered against your
order is agreed in writing, and measured values are confirmed on the batch certificate of analysis.
Materials listed here may be hazardous; they must be handled by qualified personnel under applicable
regulations.
Material specifications
| Material | PET, flame retardant |
|---|---|
| Thickness | 0.25 / 0.38 / 0.50 mm |
| Dielectric strength | ≥10 kV/mm |
| Flammability | UL94 V-0 |
| Continuous temperature | 125 °C |
| Tensile strength | ≥150 MPa |
| Volume resistivity | >10¹⁵ Ω·cm |
| Colour | White, black or transparent |
| Format | Sheet or die-cut to drawing |
| Minimum lot | 10 sheets |
Grade & packaging options
Custom particle size or purity windows
Pilot and production quantities
Technical review call with our materials team
Supply boundaries
Reference grade, not a fixed catalogue item. Capacity, particle size, coating, purity and packaging are set to the specification your process needs — the delivered grade may differ from the values shown here.
Packaging & handling
Laboratory pack | 100 g / 500 g foil-lined pouch
Pilot pack | 1 kg / 5 kg sealed container
Production pack | 25 kg fibre drum, inner PE liner
Information for material review
Drawing, dimensions and tolerances
The component it mates with, and the joint method
Quantity per lot and repeat-order pattern
Standards, certification or documentation you work to
Training in China
Training at our China facility is available for this product. Scope, schedule and language are agreed for each project.
Related products
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