SynTape® – Electrical Adhesive Tapes 3M no. 69

3M  electrical insulating tape no. 69 consists of a fabric glass as a backing with a thermosetting silicone adhesive.

Elastic, good tear resistance, very good thermal stability, flame-retardant adhesive for use at high temperatures (UL-approved to 200 °C). Printable and flame retardant to UL 510.




Download datasheet


As a cable fixing, a cover band on coils and transformers, and for terminal and crossover insulation.



RoHS-compliant according to 2002/96/EU.


Delivery forms

  • Width: from 2.5 mm in 0.1 mm increments
  • Standard lengths: 33 m rolls
  • Core diameter: 76 mm (3")
  • Special widths on request







Adhesive tapes should always be stored in a cool, dry place at approx. 20 °C and 50-60 % relative humidity. The storage period should not exceed 6 months.


Technical data

Property Unit of measure  
Type/ Ordering information    3M electro-insulating tape no. 69
Standard colours    White
Backing    Glass fibre
Adhesive    Silicone
Total thickness  mm  0.177
Tensile strength  N/cm  314
Elongation at break  5
Adhesiveness / Adhesion to steel  N/cm  4.4
Dielectic strength  kV  3
Thermal class    200 °C (N)
UL FILE NO.    E 17385 OANZ 2
Flame retardant    UL 510