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tesa® 61908

Double-sided filmic bag sealing tape with fingerlift

Product description

tesa® 61908 is a transparent double-sided tape consisting of a PP-film backing and a tackified acrylic adhesive.

tesa® 61908 features especially:
  • Secure bond on PE and PP
  • Red PP-film liner can be easily cut with common hot wire systems

Application Fields

  • Permanent bag sealing for PE/PP and polymer bags
  • Permanent bag sealing for medical pouches

Product Construction

Type of adhesive tackified acrylic
Type of liner PP
Colour of liner red
Total thickness 100 µm
Thickness of liner 80 µm
Backing material PP film
Color transparent

Properties / Performance Values

Elongation at break 140 %
Static shear resistance at 23°C good
Chemical resistance good
Humidity resistance very good
Tack good
Tensile strength 20 N/cm
Ageing resistance (UV) very good
Static shear resistance at 40°C good
Temperature resistance long term 80 °C
Softener resistance medium
Temperature resistance short term 120 °C

Adhesion to Values

Adhesion to Steel (initial) 8.7 N/cm
Adhesion to PE (initial) 3.5 N/cm
Adhesion to PC (after 14 days) 11.3 N/cm
Adhesion to PS (after 14 days) 10.7 N/cm
Adhesion to ABS (initial) 7.9 N/cm
Adhesion to ABS (after 14 days) 10.7 N/cm
Adhesion to PP (after 14 days) 6.2 N/cm
Adhesion to PET (after 14 days) 8.5 N/cm
Adhesion to Aluminium (after 14 days) 9.7 N/cm
Adhesion to PC (initial) 8.5 N/cm
Adhesion to PVC (initial) 6.8 N/cm
Adhesion to PE (after 14 days) 4.3 N/cm
Adhesion to PS (initial) 7.2 N/cm
Adhesion to PET (initial) 6 N/cm
Adhesion to Aluminium (initial) 6.6 N/cm
Adhesion to PP (initial) 5.1 N/cm
Adhesion to Steel (after 14 days) 13.7 N/cm
Adhesion to PVC (after 14 days) 11.5 N/cm
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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