tesa® 68332

High performance lamination tape



Product description

tesa® high performance lamination assortment is based on a transparent pure acrylic adhesive. It is designed to meet the requirements of consistent actuation and excellent sealability for constructing long lasting membrane switches with.
The pure acrylic adhesive offers excellent compatibility with most graphic and conductive inks. It provides high temperature performance and chemical resistance. Peel adhesion values are excellent on most surfaces. It features low initial tack and excellent cohesive strength.
A moisture resistant lay-flat liner ensures dimensional stability.
tesa® 68332 features especially:
  • High adhesive strength for long-term bonding security
  • High cohesive strength to resist lifting and separation
  • Low tack adhesive for easy repositioning during assembling process
  • Smooth adhesive for uniform graphic appearance
  • Environmental stability for long-ageing performance, even under harsh conditions
  • High temperature (incl. PET film) for dimensional stability
  • High chemical resistance, e.g. mild acids, oil, plasticizers, cleaning solutions
  • Low out-gassing (low ionic content)
  • Moisture stable lay-flat liner for easy processing
  • Easy liner release for fast and consistent processing
  • UL recognized

Main applications

  • Lamination of membrane touch switches
  • Transfer tape
  • Spacers for circuit separation (double-sided)
  • Spacers for switch assembly (single-sided)
  • Assembly of all kind of filmic multilayer constructions
  • Mounting of graphic overlays and printed nameplates

Technical properties

Type of adhesive

pure acrylic

Type of liner

PE-coated paper

Total thickness

325 µm

Backing material

PET film

Color

transparent

Adhesion properties

Adhesion to Steel (initial)

3.9 N/cm

Adhesion to PC (after 14 days)

10.2 N/cm

Adhesion to ABS (initial)

3.1 N/cm

Adhesion to ABS (after 14 days)

6.8 N/cm

Adhesion to PET (after 14 days)

4.2 N/cm

Adhesion to Aluminium (after 14 days)

4.5 N/cm

Adhesion to PC (initial)

2.7 N/cm

Adhesion to PET (initial)

1.8 N/cm

Adhesion to Aluminium (initial)

2.1 N/cm

Adhesion to Steel (after 14 days)

8.9 N/cm

Rating properties

Static shear resistance at 23°C

++

Resistance to chemicals

+

Humidity resistance

+

Tack

o

Static shear resistance at 70°C

++

Ageing resistance (UV)

++

Temperature resistance long term

150 °C

Static shear resistance at 40°C

++

Temperature resistance short term

200 °C

Softener resistance

++

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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