Product information

tesa® 68790

15µm double sided high temperature resistant PI tape

Product description

tesa® 68790 is an amber, double-sided self-adhesive tape consisting of a polyimide film backing with a special high temperature resistant adhesive.
tesa® 68790 features:
  • Ultra-thin design: 15µm
  • Color: amber
  • Superior temperature resistance up to 260°C
  • Excellent resistance to demanding environmental conditions
  • Very good handling performance in converting processes
  • Fish-eye/bubble free due to double-sided PET liner

Main applications

1 Ferrite sheets lamination before SMT (260°C) with ultra-thin design requirement
  • Electronic components permanent mounting applications, subjected to high temperature & high humidity processing and operating environments


Technical properties

Elongation at break

30 %

Type of adhesive

tackified acrylic

Color of liner


Tensile strength

13 N/cm

Type of liner (tight release)

PET film

Type of liner (easy release)

PET film

Total thickness

15 µm

Backing material




Adhesion properties

Adhesion to PI (initial)

2.5 N/cm

Adhesion to Steel (initial)

2.6 N/cm

Adhesion to PC (after 14 days)

3.3 N/cm

Adhesion to PET (after 14 days)

2.9 N/cm

Adhesion to PC (initial)

3.2 N/cm

Adhesion to PI (after 14 days)

3.1 N/cm

Adhesion to PET (initial)

2.7 N/cm

Adhesion to Steel (after 14 days)

3.4 N/cm

Rating properties

Static shear resistance at 23°C


Humidity resistance


Ageing resistance (UV)


Temperature resistance long term

100 °C

Temperature resistance short term

260 °C

tesa® products prove their impressive quality day in, day out in demanding conditions and are regularly subjected to strict controls. All technical information and data above mentioned are provided to the best of our knowledge on the basis of our practical experience. They shall be considered as average values and are not appropriate for a specification. Therefore tesa SE can make no warranties, expressed or implied, including, but not limited to any implied warranty of merchantability or fitness for a particular purpose. The user is responsible for determining whether the tesa® product is fit for a particular purpose and suitable for the user’s method of application. If you are in any doubt, our technical staff will be glad to support you.

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