tesa® 4720
Double-sided filmic tape with differential adhesion level
Product description
tesa® 4720 is a double-sided self-adhesive tape consisting of a transparent PET-film backing with two different acrylic adhesives.
tesa® 4720 features:
- Open side: high adhesion level / secure bond of different substrates
- Covered side: low adhesion level / residue free removability from different substrates
Product details and specifications
Application Fields
- Mounting of LCD panel and backlight unit
Product Construction
| Adhesive Type | tackified acrylic |
|---|---|
| Backing material | PET film |
| Color | transparent |
| Color of liner | yellow |
| Liner Type | glassine |
| Thickness of liner | 3.07 mils
78 µm |
| Total thickness | 3.94 mils
100 µm |
| Type of adhesive (covered side) | acrylic |
| Weight of liner | 130.85 lbs/in²
92 g/m² |
Properties / Performance Values
| Elongation at break | 60 % |
|---|---|
| Tensile strength | 22.84 lbs/in
40 N/cm |
| Temperature resistance long term | 176 °F
80 °C |
| Humidity resistance | low |
| Temperature resistance short term | 392 °F
200 °C |
| Static shear resistance at 40°C | low |
| Softener resistance | medium |
| Tack | medium |
| Static shear resistance at 23°C | good |
Adhesion to Values
| Adhesion to ABS (initial) | 4.05 lbs/in
7.1 N/cm |
|---|---|
| Adhesion to ABS (after 14 days) | 5.82 lbs/in
10.2 N/cm |
| Adhesion to ABS (covered side, after 14 days) | 2.68 lbs/in
4.7 N/cm |
| Adhesion to ABS (covered side, initial) | 1.54 lbs/in
2.7 N/cm |
| Adhesion to Aluminium (initial) | 4.28 lbs/in
7.5 N/cm |
| Adhesion to Aluminium (after 14 days) | 5.25 lbs/in
9.2 N/cm |
| Adhesion to Aluminium (covered side, initial) | 0.97 lbs/in
1.7 N/cm |
| Adhesion to Aluminium (covered side, after 14 days) | 2.74 lbs/in
4.8 N/cm |
| Adhesion to PC (initial) | 6.11 lbs/in
10.7 N/cm |
| Adhesion to PC (after 14 days) | 6.85 lbs/in
12 N/cm |
| Adhesion to PC (covered side, initial) | 1.6 lbs/in
2.8 N/cm |
| Adhesion to PC (covered side, after 14 days) | 2.97 lbs/in
5.2 N/cm |
| Adhesion to PE (initial) | 2.23 lbs/in
3.9 N/cm |
| Adhesion to PE (after 14 days) | 2.8 lbs/in
4.9 N/cm |
| Adhesion to PE (covered side, initial) | 0.4 lbs/in
0.7 N/cm |
| Adhesion to PE (covered side, after 14 days) | 0.63 lbs/in
1.1 N/cm |
| Adhesion to PET (initial) | 4 lbs/in
7 N/cm |
| Adhesion to PET (after 14 days) | 3.88 lbs/in
6.8 N/cm |
| Adhesion to PET (covered side, after 14 days) | 1.6 lbs/in
2.8 N/cm |
| Adhesion to PET (covered side, initial) | 1.03 lbs/in
1.8 N/cm |
| Adhesion to PP (initial) | 2.17 lbs/in
3.8 N/cm |
| Adhesion to PP (after 14 days) | 3.03 lbs/in
5.3 N/cm |
| Adhesion to PP (covered side, after 14 days) | 0.91 lbs/in
1.6 N/cm |
| Adhesion to PP (covered side, initial) | 0.74 lbs/in
1.3 N/cm |
| Adhesion to PS (initial) | 4.8 lbs/in
8.4 N/cm |
| Adhesion to PS (after 14 days) | 6.28 lbs/in
11 N/cm |
| Adhesion to PS (covered side, after 14 days) | 2.06 lbs/in
3.6 N/cm |
| Adhesion to PS (covered side, initial) | 1.26 lbs/in
2.2 N/cm |
| Adhesion to PVC (initial) | 4.91 lbs/in
8.6 N/cm |
| Adhesion to PVC (after 14 days) | 6.57 lbs/in
11.5 N/cm |
| Adhesion to PVC (covered side, after 14 days) | 3.03 lbs/in
5.3 N/cm |
| Adhesion to PVC (covered side, initial) | 2.06 lbs/in
3.6 N/cm |
| Adhesion to Steel (initial) | 4.85 lbs/in
8.5 N/cm |
| Adhesion to Steel (after 14 days) | 7.37 lbs/in
12.9 N/cm |
| Adhesion to Steel (covered side, after 14 days) | 3.25 lbs/in
5.7 N/cm |
| Adhesion to Steel (covered side, initial) | 2.28 lbs/in
4 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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