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tesa® 6937 Laser-Label

Fraud-resistant watermark

Product description

tesa® 6937 is a double layer, brittle acrylic film with watermark. Customised and fraud-resistant information, such as company logo, is permanently embossed in the backing. Marking and cutting are achieved by laser in one step, which makes it possible to realise 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.

Available in: black or silver

Application Fields

  • Customised Watermark embossed in the backing
  • High contrast and excellent marking precision
  • 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

Product Construction

Type of adhesive acrylic
Type of liner coated paper
Weight of liner 120 g/m²
Backing material Acrylic

Properties / Performance Values

Suitable Laser CO2, Nd:YAG, Yb:YAG
Resistance to chemicals very good
Humidity resistance very good
Peel off force from liner 0.5-10
Ageing resistance (UV) very good
Tamper Evidence Yes
Temperature resistance long term duration 120 °C
Frost resistance -40 °C
Temperature resistance short term duration 250 °C

Additional Info

Dimensions: Customer specific
Standard Width: 100mm or 120mm. Length: 170-300m
(Length 6937 PV6: max. 200m)

Assortment and Technical Data:
6937 PV3 black/ white glossy: Adhesive 25g/m², Thickness 95µm without Liner. Colour code: 04
6937 PV3 black/ white matt: Adhesive 25g/m², Thickness 100µm without Liner. Colour code: 28
6937 PV3 silver/ black glossy: Adhesive 25g/m², Thickness 115µm without Liner. Colour code: 35
6937 PV6 black/ white glossy: Adhesive 35g/m², Thickness 145µm without Liner. Colour code: 04
6937 PV6 black/ white matt: Adhesive 35g/m², Thickness 145µm without Liner. Colour code: 28

Optional: UV-Footprint adhesive (MU49):
tesa® 6937 MU49 is equipped with a special acrylic adhesive system, which leaves an UV-detectable trace (“UV-Footprint”). This special variant is available upon request.
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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