tesa® 68549
20µm double sided transparent conformable filmic tape
Product Features- Thickness: 20µm
- Backing thickness: 2µm
- Excellent heat transfer due to low thickness and good wetting
Product description
tesa® 68549 is a transparent, double-sided self-adhesive tape consisting of a thin, conformable PET film backing and a tackified acrylic adhesive.
Product Features
- Thickness: 20µm
- Backing thickness: 2µm
- Excellent heat transfer due to low thickness and good wetting
- High adhesion level relative to low thickness
- Excellent conformability and adjustment to curved surfaces
- Excellent resistance to demanding environmental conditions
Application Fields
- Mounting of heat spreading parts
- Lamination in NFC antenna
- Very small design gap filling
Product Construction
| Backing material | PET film |
| Type of adhesive | tackified acrylic |
| Total thickness | 20 µm |
| Color | transparent |
Properties / Performance Values
| Ageing resistance (UV) | very good |
| Chemical resistance | very good |
| Humidity resistance | very good |
| Static shear resistance at 23°C | medium |
| Tack | low |
| Temperature resistance long term | 100 °C |
| Temperature resistance short term | 200 °C |
Adhesion to Values
| Adhesion to ABS (initial) | 6.3 N/cm |
| Adhesion to ABS (after 14 days) | 7.3 N/cm |
| Adhesion to PC (initial) | 8 N/cm |
| Adhesion to PC (after 14 days) | 8.2 N/cm |
| Adhesion to PE (initial) | 2.2 N/cm |
| Adhesion to PE (after 14 days) | 3.1 N/cm |
| Adhesion to Steel (initial) | 7.3 N/cm |
| Adhesion to Steel (after 14 days) | 9.7 N/cm |
Additional Info
Liner variants:
PV57: double sided PET liners (36µm easy-release inside / 50µm tight-release outside)
PV65: double sided PET liners (36µm transparent easy-release inside / 50µm blue tight-release outside)
PV70: double sided PET liners (23µm transparent easy-release inside / 50µm blue tight-release outside)
PV57: double sided PET liners (36µm easy-release inside / 50µm tight-release outside)
PV65: double sided PET liners (36µm transparent easy-release inside / 50µm blue tight-release outside)
PV70: double sided PET liners (23µm transparent easy-release inside / 50µm blue tight-release outside)
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.
