Electronics, PET, Black, Light Management

Product information

tesa® 7550

50µm single sided matt black filmic tape

Product description

tesa® 7550 is a matt single sided self-adhesive tape consisting of a PET film backing and a black tackified acrylic adhesive

Special features:

  • Thickness: 50µm
  • Very good light blocking performance
  • Matt black surface with very good scratch and fingerprint resistance
  • High peel strength and shear resistance
  • Excellent repulsion resistance properties
  • Excellent resistance to demanding environmental conditions

Main applications

  • Fixation in LED light sources or Flat Panel displays
  • Light shielding in consumer electronics parts

Technical properties

Backing material

PET film

Total thickness

50 µm

Type of adhesive


Elongation at break

60 %

Tensile strength

36.7 N/cm

Type of liner


Colour of liner


Thickness of liner

50 µm

Temperature resistance short term

130 °C

Temperature resistance long term

60 °C

Dielectric breakdown voltage

4500 volt

Transmittance (380 - 780nm) <

0.00 %

Adhesion properties

Adhesion to ABS (after 14 days)

5 N/cm

Adhesion to ABS (initial)

4 N/cm

Adhesion to Aluminium (after 14 days)

4.6 N/cm

Adhesion to Aluminium (initial)

4 N/cm

Adhesion to Glass (after 14 days)

4.7 N/cm

Adhesion to Glass (initial)

3.8 N/cm

Adhesion to PC (after 14 days)

5 N/cm

Adhesion to PC (initial)

3.8 N/cm

Adhesion to Steel (after 14 days)

4.6 N/cm

Adhesion to Steel (initial)

4 N/cm

Rating properties



Ageing resistance (UV)


Humidity resistance


Softener resistance


Static shear resistance at 23°C


Static shear resistance at 40°C


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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