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.





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