Product information

tesa® 51908

Double-sided filmic tape

Product description

tesa® 51908 is a transparent double-sided tape consisting of a PP-film backing and a tackified acrylic adhesive.

tesa® 51908 features:
  • Secure bond on PE and PP
  • Product can be easily cut with common hot wire systems

Main applications

  • Permanent bag sealing for PE/PP and polymer bags
  • Permanent bag sealing for medical pouches


Technical properties

Elongation at break

140 %

Type of adhesive

tackified acrylic

Type of liner


Colour of liner


Tensile strength

20 N/cm

Weight of liner

72 g/m²

Total thickness

100 µm

Thickness of liner

80 µm

Backing material

PP film



Adhesion properties

Adhesion to Steel (initial)

8.7 N/cm

Adhesion to PE (initial)

3.5 N/cm

Adhesion to PC (after 14 days)

11.3 N/cm

Adhesion to PS (after 14 days)

10.7 N/cm

Adhesion to ABS (initial)

7.9 N/cm

Adhesion to ABS (after 14 days)

10.7 N/cm

Adhesion to PP (after 14 days)

6.2 N/cm

Adhesion to PET (after 14 days)

8.5 N/cm

Adhesion to Aluminium (after 14 days)

9.7 N/cm

Adhesion to PC (initial)

8.5 N/cm

Adhesion to PVC (initial)

6.8 N/cm

Adhesion to PE (after 14 days)

4.3 N/cm

Adhesion to PS (initial)

7.2 N/cm

Adhesion to PET (initial)

6 N/cm

Adhesion to Aluminium (initial)

6.6 N/cm

Adhesion to PP (initial)

5.1 N/cm

Adhesion to Steel (after 14 days)

13.7 N/cm

Adhesion to PVC (after 14 days)

11.5 N/cm

Rating properties

Static shear resistance at 23°C


Resistance to chemicals


Humidity resistance




Ageing resistance (UV)


Temperature resistance long term

80 °C

Static shear resistance at 40°C


Temperature resistance short term

120 °C

Softener resistance


Additional Info

Liner variants:
PV0 red MOPP film (80 µm)
PV1 brown glassine paper (71 µm)

A fingerlift version (extended liner), tesa® 61908, is also available.

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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