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tesa® 58373 – Double sided transparent flame retardant PET tape – power battery mounting, lamination applications

Item Name: tesa® 58373
Manufacturer: tesa SE
Technologies: Flame retardant double sided adhesive tape
Color: Transparent
Backing material: PET
Type of adhesive: Flame retardant acrylic
Package Size: Contact to Techniq VN for details
Shelf Life: Contact to Techniq VN for details

1. Product Overview
tesa® 58373 is an 80 µm double-sided transparent PET tape with flame retardant properties, specifically designed for demanding power battery applications. The tape provides excellent initial adhesion to polar substrates such as PI and aluminum, is halogen-free, and meets UL 94 VTM-0 equivalent standards. It is engineered for mounting, lamination, and converting processes where non-flammability and reliability are critical for automotive battery systems.

2. Applications

  • Mounting in power batteries

  • Lamination requiring additional flame retardant protection

  • Converting processes with precise die-cutting requirements

3. Typical Properties

Property Value
Thickness 80 µm
Backing Transparent PET
Flame Retardancy UL 94 VTM-0 equivalent
Adhesion to PET (initial) 6.6 N/cm
Adhesion to PI (initial) 5.9 N/cm
Adhesion to PI (after 3 days) 6.5 N/cm
Adhesion to Steel (initial) 7.2 N/cm
Adhesion to Steel (after 3 days) 8.2 N/cm
Compliance Halogen-free
Features Excellent die-cutting ability, high bonding performance

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