SynTape® – Electrical Adhesive Tapes SynTape® H/ 301

SynTape® H/ 301 is a polyimide adhesive tape with silicone adhesive for the highest electrical and thermal demands.

SynTape® H/ 301 has good adhesiveness over a large temperature range, high dielectric strength and smooth removal from the roll.

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SynTape® H/ 301 is used for masking of printed circuit board contacts when soldering with subsequent residue-free removal.

Delivery forms

  • Width: from 2.5 mm, in 0.1 mm increments
  • Standard length: 66 m
  • Core diameter: 76 mm (3'')
  • Special widths on request.


6 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 6 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

Technical data

Technical data
Property Unit of measure
Type/ Ordering information 301
Standard colours Brown-transparent
Backing Polyimide
Adhesive Silicone
Total thickness mm 0.060 ± 0.005
Backing thickness mm 0.030 ± 0.003
Coefficient of expansion ≥ 50 %
Tensile strength N/10 mm ≥ 35
Adhesiveness / Adhesion to steel N/cm ≥ 1.6
Dielectric strength kV ≥ 5.5
Thermal class °C 180 (H)