tesa® 6931 Laser-Label

Color-Change marking

Product description

tesa® 6931 is a brittle acrylic film. Marking and cutting are achieved by laser in one step, which makes it possible to realize any desirable label variation and format using only one material. The backing is highly resistant against chemicals, abrasion, temperature and ageing. The adhesive system consists of a resin modified acrylic suitable even for low energy surfaces.

This high performance product is used as a tamper evident identification label over the entire lifetime of a product and also as a data carrier system for intelligent in-process steering. Marking is achieved by laser-activated color pigments embedded in the backing.

Colour: white and transparent

Main applications

  • Precise and resistant marking
  • Very resistant to heat, abrasion and chemicals
  • Tamper Evident: Manipulation leaves visible trace
  • Not removeable without destruction of the label
  • Flexible formatting and label design: marking and cutting by the laser
  • Efficient: replaces a multitude of pre-made labels
  • Just-in-time production reduces storage needs
  • High marking speed in conjunction with high-speed laser hardware

Technical properties

Thickness of tape

100 µm

Adhesive weight

25 g/m²

Adhesion to Steel >

1.8 N/cm

Type of adhesive


Type of liner

coated paper

Shelf life time

24 months

Peel off force from liner

2-6 cN/cm

Weight of liner

65 g/m²

Tamper Evidence


Backing material


Rating properties



Suitable Laser


Resistance to chemicals


Humidity resistance


Ageing resistance (UV)


Temperature resistance long term

120 °C

Storage conditions

23°C, 50% RH, stored in original box

Temperature resistance short term

270 °C

Frost resistance

-50 °C

Additional Info

Standard Dimensions:
Width: 100mm and 120mm, length: 300m

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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