tesa® 4976

Double-sided PU foam tape

Product description

tesa® 4976 is a double-sided tape consisting of a conformable black open cell PU foam backing and a tackified acrylic adhesive.

tesa® 4976 features:
  • Good compensation for design tolerances
  • Level out different thermal expansion of materials
  • Shock absorption and sealing function
  • High short term temperature resistance

Application Fields

  • Fixing of mirrors, decorative profiles and signs
  • Mounting of cable channels

Product Construction

Type of liner glassine
Weight of liner 80 g/m²
Backing material PU foam
Type of adhesive tackified acrylic, acrylic, advanced acrylic, modified acrylic
Colour of liner brown
Total thickness 540 µm
Thickness of liner 70 µm
Colour black, beige

Properties / Performance Values

Elongation at break 250 %
Static shear resistance at 23°C good
Chemical resistance medium, good
Humidity resistance low
Static shear resistance at 40°C good
Temperature resistance long term duration 80 °C
Temperature resistance short term duration 200 °C
Tack good
Tensile strength 6.66 N/cm
Ageing resistance (UV) medium, good
Softener resistance medium, good

Adhesion to Values

Adhesion to Steel (initial) 10 N/cm
Adhesion to PE (initial) 4.1 N/cm
Adhesion to PC (after 14 days) 12 N/cm
Adhesion to PS (after 14 days) 10 N/cm
Adhesion to ABS (initial) 7 N/cm
Adhesion to PP (after 14 days) 7.4 N/cm
Adhesion to PET (after 14 days) 10 N/cm
Adhesion to Aluminium (after 14 days) 9 N/cm
Adhesion to PE (after 14 days) 4.3 N/cm
Adhesion to Aluminium (initial) 5 N/cm
Adhesion to ABS (after 14 days) 12 N/cm
Adhesion to PC (initial) 8 N/cm
Adhesion to PVC (initial) 5.5 N/cm
Adhesion to PS (initial) 5 N/cm
Adhesion to PET (initial) 5.5 N/cm
Adhesion to PP (initial) 3.7 N/cm
Adhesion to Steel (after 14 days) 12 N/cm
Adhesion to PVC (after 14 days) 12 N/cm

Additional Info

Peel Adhesion:
- immediately: foam splits on Steel, Aluminium, ABS, PC, PS, PET, PVC
- after 14 days: foam splits on Steel, Aluminium, ABS, PC, PS, PET, PVC
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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