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tesa® 7920

20 µm single sided matte black filmic tape



Product description

tesa® 7920 is a matt single sided self-adhesive tape consisting of an ultra-thin PET film backing and a black tackified acrylic adhesive

Special features:
  • Thickness: 20µm
  • Very good light blocking performance
  • Ultra matte black surface with a gloss level of 2.5 %
  • Excellent anti-fingerprint performance
  • Very good scratch 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
  • Graphite sheet covering, protection and fixation
  • NFC antenna covering, protection and fixation

Technical properties

Elongation at break

60 %

Type of adhesive

acrylic

Type of liner

PET

Colour of liner

transparent

Tensile strength

8.7 N/cm

Total thickness

20 µm

Thickness of liner

50 µm

Backing material

PET film

Optical density

4

Temperature resistance long term

60 °C

Temperature resistance short term

130 °C

Dielectric breakdown voltage

1500 volt

Adhesion properties

Adhesion to Steel (initial)

1.9 N/cm

Adhesion to PC (after 14 days)

2.8 N/cm

Adhesion to ABS (initial)

1.9 N/cm

Adhesion to ABS (after 14 days)

2.6 N/cm

Adhesion to Aluminium (after 14 days)

2.6 N/cm

Adhesion to PC (initial)

2 N/cm

Adhesion to Glass (after 14 days)

2.3 N/cm

Adhesion to Glass (initial)

1.9 N/cm

Adhesion to Aluminium (initial)

1.9 N/cm

Adhesion to Steel (after 14 days)

2.5 N/cm

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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