tesa® 7946

Single sided cell fixation tape


Product description

tesa® 7946 is a transparent tape with a PET backing. Its pure acrylic adhesive system combines good initial tack with high shear strength. The product features good insulating properties and can be efficiently applied in manual as well as automated process.


Product details and specifications

Application Fields

tesa® 7946 is particularly designed for
  • Temporary fixation of cells in photovaltaic modules during lamination process
  • Fixation and insulation of solar ribbons in thin film modules
Color transparent
Total thickness 56 µm
Type of adhesive pure acrylic
Elongation at break 55 %
Temperature resistance short term 200 °C
Adhesion to steel 3.5 N/cm
  • Dielectric Strength: 154 kV/mm
  • Surface resistivity 1,73E+15 Ω
  • Volume resistivity 2,37E+15 Ωcm
  • Dielectric strength according to ASTM-D-1000
  • Surface / Volume resistivity according to ASTM-D-257
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.
Downloads

Download the files below for more technical details and information on this product.

Get in contact with us!

Contact us

Thank you for your message.

We will contact you as soon as possible.

Something went wrong. Please try again later.

Product comparison

Name of product tesa® 7946 tesa® 62580 tesa® 4156 PV1 tesa® 7475 PV2 tesa® 60402 tesa® 65610 InvisiBond One Lift tesa® flameXtinct 45020 Differential tesa® 58335 150µm D/S PET tesa® 58334 100µm D/S PET tesa® Printer's Friend 4863 PV3 tesa® 58374
Total thickness
56 µm
50 µm
1,600 µm
1,200 µm
190 µm
150 µm
100 µm
620 µm
100
Type of adhesive
pure acrylic
functional
natural rubber
acrylic
acrylic
tackified acrylic
FR acrylic
tackified acrylic
tackified acrylic
natural rubber
tackified acrylic
Temperature resistance short term
200 °C
80 °C
200 °C
Backing material
PET film
cellophane
PETP
PVC foam
PE foam
PET
PET
PET
Silicone-coated cloth
PET
Adhesion to Steel (after 14 days)
4 N/cm
10.5 N/cm
9.7 N/cm
9.5 N/cm
Adhesion to Aluminium (after 14 days)
4 N/cm
9.5 N/cm
Adhesion to PVC (after 14 days)
4 N/cm
Last updated on 10 Jun 2026