Intertape® – Electrical adhesive tapes Intertape® 4429

Intertape® 4429 consists of a polyimide film with thermosetting silicone adhesive.

Download datasheet


UL-File-No.: E20780
CSA-File: LR94980

Delivery forms

  • Width: from 2.5 mm in 0.1 mm increments
  • Core diameter: 76 mm (3")
  • Special widths on request


Transparent brown


Silicone thermosetting




12 months at room temperature. Adhesive tapes should be stored in a cool, dry place at approx. 20 °C and 50 - 60 % relative humidity. The storage period should not exceed 12 months.

Technical data

Property Unit of measure  
Type/ Ordering information    Intertape® 4429
Standard colours    Transparent brown
Backing    Polyimide film
Backing thickness  mm  0.050
Adhesive    Silicone thermosetting
Total thickness  mm  0.089
Elongation at break  60
Insulation resistance  MΩ  10^6
Electrolyt. corrosion value    1.0 Direct/A.1
Flammability class    BU 1
Thermal class    180 °C (H)
Dielectic strength  kV  11
Tensile strength  N/cm  114
Adhesiveness / Adhesion to steel  N/cm  3.3
UL FILE NO.    E20780