tesa® 61970

Double-sided box closure tape with fingerlift

Product description

tesa® 61970 is a transparent double-sided self-adhesive tape consisting of a PP-film backing and a tackified acrylic adhesive.

tesa® 61970 features:
  • Fast liner removal due to fingerlift
  • High initial adhesion for a fast closure process
  • Reliable bonding performance even at high temperature

Application Fields

  • Closing of self-adhesive mail order boxes
  • Closing of CD and book cartons

Product Construction

Backing material PP film
Colour transparent
Colour of liner white
Thickness of liner 84 µm
Total thickness 220 µm
Type of adhesive tackified acrylic
Type of liner paper
Weight of liner 102 g/m²

Properties / Performance Values

Elongation at break 150 %
Tensile strength 50 N/cm
Ageing resistance (UV) good
Chemical resistance good
Humidity resistance very good
Softener resistance good
Static shear resistance at 23°C good
Static shear resistance at 40°C good
Tack good
Temperature resistance long term duration 80 °C
Temperature resistance min. -40 °C
Temperature resistance short term duration 130 °C

Adhesion to Values

Adhesion to ABS (initial) 12.5 N/cm
Adhesion to ABS (after 14 days) 14.5 N/cm
Adhesion to Aluminium (initial) 11.5 N/cm
Adhesion to Aluminium (after 14 days) 12.5 N/cm
Adhesion to PC (initial) 15 N/cm
Adhesion to PC (after 14 days) 16.5 N/cm
Adhesion to PE (initial) 7 N/cm
Adhesion to PE (after 14 days) 8 N/cm
Adhesion to PET (initial) 11 N/cm
Adhesion to PET (after 14 days) 11.5 N/cm
Adhesion to PP (initial) 8.5 N/cm
Adhesion to PP (after 14 days) 10 N/cm
Adhesion to PS (initial) 13 N/cm
Adhesion to PS (after 14 days) 14.5 N/cm
Adhesion to PVC (initial) 11.5 N/cm
Adhesion to PVC (after 14 days) 17.5 N/cm
Adhesion to Steel (initial) 13 N/cm
Adhesion to Steel (after 14 days) 13.5 N/cm

Additional Info

Liner variants:
PV1 white glassine paper (84 µm)
PV6 red MOPP-film (80 µm)
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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