Product Construction
| Adhesive Type | tackified acrylic |
| Backing material | PP film |
| Color | transparent |
| Color of liner | white |
| Liner Type | paper |
| Thickness of liner | 3.31 mils
84 µm |
| Total thickness | 8.66 mils
220 µm |
| Weight of liner | 145.08 lbs/in²
102 g/m² |
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 especially:
- Fast liner removal due to fingerlift
- High initial adhesion for a fast closure process
- Reliable bonding performance even at high temperature
Product details and specifications
Application Fields
- Closing of self-adhesive mail order boxes
- Closing of CD and book cartons
Product Construction
| Adhesive Type | tackified acrylic |
| Backing material | PP film |
| Color | transparent |
| Color of liner | white |
| Liner Type | paper |
| Thickness of liner | 3.31 mils
84 µm |
| Total thickness | 8.66 mils
220 µm |
| Weight of liner | 145.08 lbs/in²
102 g/m² |
Properties / Performance Values
| Elongation at break | 150 % |
| Tensile strength | 28.55 lbs/in
50 N/cm |
| Static shear resistance at 40°C | good |
| Temperature resistance min. | -40 °F
-40 °C |
| Temperature resistance long term | 176 °F
80 °C |
| Softener resistance | good |
| Chemical Resistance | good |
| Static shear resistance at 23°C | good |
| Humidity resistance | very good |
| Temperature resistance short term | 266 °F
130 °C |
| Ageing resistance (UV) | good |
| Tack | good |
Properties / Performance Values
| Elongation at break | 150 % |
| Tensile strength | 28.55 lbs/in
50 N/cm |
| Static shear resistance at 40°C | good |
| Temperature resistance min. | -40 °F
-40 °C |
| Temperature resistance long term | 176 °F
80 °C |
| Softener resistance | good |
| Chemical Resistance | good |
| Static shear resistance at 23°C | good |
| Humidity resistance | very good |
| Temperature resistance short term | 266 °F
130 °C |
| Ageing resistance (UV) | good |
| Tack | good |
Adhesion to Values
| Adhesion to ABS (initial) | 7.14 lbs/in
12.5 N/cm |
| Adhesion to ABS (after 14 days) | 8.28 lbs/in
14.5 N/cm |
| Adhesion to Aluminium (initial) | 6.57 lbs/in
11.5 N/cm |
| Adhesion to Aluminium (after 14 days) | 7.14 lbs/in
12.5 N/cm |
| Adhesion to PC (initial) | 8.57 lbs/in
15 N/cm |
| Adhesion to PC (after 14 days) | 9.42 lbs/in
16.5 N/cm |
| Adhesion to PE (initial) | 4 lbs/in
7 N/cm |
| Adhesion to PE (after 14 days) | 4.57 lbs/in
8 N/cm |
| Adhesion to PET (initial) | 6.28 lbs/in
11 N/cm |
| Adhesion to PET (after 14 days) | 6.57 lbs/in
11.5 N/cm |
| Adhesion to PP (initial) | 4.85 lbs/in
8.5 N/cm |
| Adhesion to PP (after 14 days) | 5.71 lbs/in
10 N/cm |
| Adhesion to PS (initial) | 7.42 lbs/in
13 N/cm |
| Adhesion to PS (after 14 days) | 8.28 lbs/in
14.5 N/cm |
| Adhesion to PVC (initial) | 6.57 lbs/in
11.5 N/cm |
| Adhesion to PVC (after 14 days) | 9.99 lbs/in
17.5 N/cm |
| Adhesion to Steel (initial) | 7.42 lbs/in
13 N/cm |
| Adhesion to Steel (after 14 days) | 7.71 lbs/in
13.5 N/cm |
Adhesion to Values
| Adhesion to ABS (initial) | 7.14 lbs/in
12.5 N/cm |
| Adhesion to ABS (after 14 days) | 8.28 lbs/in
14.5 N/cm |
| Adhesion to Aluminium (initial) | 6.57 lbs/in
11.5 N/cm |
| Adhesion to Aluminium (after 14 days) | 7.14 lbs/in
12.5 N/cm |
| Adhesion to PC (initial) | 8.57 lbs/in
15 N/cm |
| Adhesion to PC (after 14 days) | 9.42 lbs/in
16.5 N/cm |
| Adhesion to PE (initial) | 4 lbs/in
7 N/cm |
| Adhesion to PE (after 14 days) | 4.57 lbs/in
8 N/cm |
| Adhesion to PET (initial) | 6.28 lbs/in
11 N/cm |
| Adhesion to PET (after 14 days) | 6.57 lbs/in
11.5 N/cm |
| Adhesion to PP (initial) | 4.85 lbs/in
8.5 N/cm |
| Adhesion to PP (after 14 days) | 5.71 lbs/in
10 N/cm |
| Adhesion to PS (initial) | 7.42 lbs/in
13 N/cm |
| Adhesion to PS (after 14 days) | 8.28 lbs/in
14.5 N/cm |
| Adhesion to PVC (initial) | 6.57 lbs/in
11.5 N/cm |
| Adhesion to PVC (after 14 days) | 9.99 lbs/in
17.5 N/cm |
| Adhesion to Steel (initial) | 7.42 lbs/in
13 N/cm |
| Adhesion to Steel (after 14 days) | 7.71 lbs/in
13.5 N/cm |
Additional Info
Liner variants:
PV1 white glassine paper (84 µm/3.3 mils)
PV6 red MOPP-film (80 µm/3.1 mils)
PV1 white glassine paper (84 µm/3.3 mils)
PV6 red MOPP-film (80 µm/3.1 mils)
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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