540 µm double sided PU foam tape
tesa® 4976 is a double sided tape consisting of a conformable black open cell PU foam backing and a tackified acrylic adhesive.
| Backing material | PU foam |
|---|---|
| Colour | black |
| Colour of liner | brown |
| Thickness of liner | 70 µm |
| Total thickness | 540 µm |
| Type of adhesive | tackified acrylic |
| Type of liner | glassine |
| Weight of liner | 80 g/m² |
| Elongation at break | 250 % |
|---|---|
| Tensile strength | 6.66 N/cm |
| Softener resistance | medium |
| Temperature resistance long term duration | 80 °C |
| Static shear resistance at 40°C | good |
| Temperature resistance short term duration | 200 °C |
| Static shear resistance at 23°C | good |
| Humidity resistance | low |
| Chemical resistance | medium |
| Tack | good |
| Ageing resistance (UV) | medium |
| Adhesion to ABS (initial) | 7 N/cm |
|---|---|
| Adhesion to ABS (after 14 days) | 12 N/cm |
| Adhesion to Aluminium (initial) | 5 N/cm |
| Adhesion to Aluminium (after 14 days) | 9 N/cm |
| Adhesion to PC (initial) | 8 N/cm |
| Adhesion to PC (after 14 days) | 12 N/cm |
| Adhesion to PE (initial) | 4.1 N/cm |
| Adhesion to PE (after 14 days) | 4.3 N/cm |
| Adhesion to PET (initial) | 5.5 N/cm |
| Adhesion to PET (after 14 days) | 10 N/cm |
| Adhesion to PP (initial) | 3.7 N/cm |
| Adhesion to PP (after 14 days) | 7.4 N/cm |
| Adhesion to PS (initial) | 5 N/cm |
| Adhesion to PS (after 14 days) | 10 N/cm |
| Adhesion to PVC (initial) | 5.5 N/cm |
| Adhesion to PVC (after 14 days) | 12 N/cm |
| Adhesion to Steel (initial) | 10 N/cm |
| Adhesion to Steel (after 14 days) | 12 N/cm |
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