tesa® 4912

5µm double sided transparent filmic tape

Product description

tesa® 4912 is a transparent, double-sided self-adhesive tape consisting of a ultra-thin PET film backing and a tackified acrylic adhesive.
tesa® 4912 features:
  • Thickness: 5µm
  • Excellent heat transfer due to very low thickness
  • 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
  • Nanocrystal sheet lamination
  • Ultra-thin gap filling

Product Construction

Type of adhesive tackified acrylic
Total thickness 5 µm
Backing material PET film
Color transparent

Properties / Performance Values

Static shear resistance at 23°C medium
Temperature resistance long term 80 °C
Humidity resistance very good
Temperature resistance short term 140 °C

Adhesion to Values

Adhesion to Steel (initial) 3.6 N/cm
Adhesion to PC (after 14 days) 4 N/cm
Adhesion to PMMA (after 14 days) 4.3 N/cm
Adhesion to PMMA (initial) 4 N/cm
Adhesion to Steel (after 14 days) 3.9 N/cm
Adhesion to PC (initial) 3.6 N/cm

Additional Info

PV62: double sided PET liners (23µm easy-release inside / 50µm 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.

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