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SynTape® – Electrical Adhesive Tapes

3M no. 79

3M electro-insulating tape No. 79 is a UL-approved fibre glass adhesive tape with acrylate adhesive.

Attributes

High tear and temperature resistant fabric tape with good varnish and resin resistance. Very easy to form!

Application

As electrical insulation of coils and transformers, as final insulation and as coil ends of stators. It is used if high mechanical strength, stress relief and thermal resistance are required.

Standards

RoHS compliant according to 2011/65/EU.

Delivery forms

Width: From 2.5 mm, in 0.1 mm increments
Standard length: 55 m
Core diameter: 76 mm (3“)
Special widths: From 0.8 mm on request!

Glue

Acrylate

Adhesive

one-sided

Storage

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
General
Standard colours  Type/ Ordering information  Backing  Backing thickness  Total thickness  Adhesive  Tear force  Elongation at break  Adhesiveness / Adhesion to steel  Dielectric strength  Thermal class  Electrolyt. corrosion value  UL FILE NO. 
Unit of measure  
  white
  3M electro-insulating tape no. 79
  Glass fibre
mm  0.127
  0.177 mm
  Acrylate
262 /10 mm
  5 %
  3.3 N/ 10 mm
  3000 Veff
  155 °C
  A 0.9
  E 17385 OANZ 2