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.

Punched parts, bent & formed parts

We offer a wide range of punched and formed parts: Rolls, individual parts unsorted, sorted or stacked, adhesive on one or both sides, non-adhesive, with or without a grip tab.


More about punched parts

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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 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