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tesa® 8857 – High-temp tackified acrylic tape – FPC mounting, solder reflow, electronics high-temperature environments

  • Item Name: tesa® 8857

  • Manufacturer: tesa SE

  • Technologies: High-temperature resistant self-adhesive tape

  • Color: Translucent

  • Backing material: Ultra thin non-woven

  • Type of adhesive: Tackified acrylic

  • Package Size: Contact to Techniq VN for details

  • Shelf Life: Contact to Techniq VN for details

1. Product overview
tesa® 8857 is a 50µm double-sided translucent non-woven adhesive tape engineered with a tackified acrylic system. It is designed for applications demanding excellent heat resistance, withstanding temperatures up to 260°C. The tape features a highly conformable structure, superior aging resistance, and clean release without adhesive residue after reflow oven processes. It complies with RoHS standards, ensuring environmental safety.

2. Applications
This tape is primarily used in Flat Printed Circuit (FPC) mounting applications within electronic assemblies, especially where components are exposed to high temperature processes and challenging operating conditions. Its high tensile strength, low oozing, and excellent die-cutting properties make it suitable for precision electronic bonding.

3. Typical Properties

Property Value / Description
Backing material Ultra thin non-woven
Adhesive type Tackified acrylic
Liner Heat-resistant paper (white, 86 µm, 100 g/m²)
Total thickness 50 µm
Colour Translucent
Temperature resistance Up to 260°C
Adhesion to ABS 4.8–6 N/cm (initial to 14 days)
Adhesion to Aluminium 4.5–5.9 N/cm
Adhesion to PC 5.8–6.9 N/cm
Adhesion to PET 5–5.4 N/cm
Adhesion to PI 5.9–6 N/cm
Adhesion to Steel 5.3–6.5 N/cm
Key features High tensile strength, low oozing, RoHS compliant

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