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Product information

tesa® 58358

220 µm/8.66 mils s/s black PET electrical insulation tape

Product description

tesa® 58358 is a black 220 µm single sided PET insulation tape designed for electrical insulation of electric vehicle batteries and other components.

Main Features & Benefits
  • Very strong adhesion to aluminum and steel
  • Strong backing to resist mechanical stress
  • Reliable protection against dielectric breakdown
  • Suitable for high-speed automated processing through strong backing and liner
  • Non-flammable acc. to FMVSS 302

Main applications

Electrical insulation of battery cells and other components for electric vehicles


Technical properties

Elongation at break

80 %

Type of adhesive

modified acrylic

Type of liner


Colour of liner


Tensile strength

210 N/cm

Total thickness

220 µm

Thickness of liner

70 µm

Backing material




Dielectric breakdown voltage

8000 volt

Adhesion properties

Adhesion to Steel (initial)

15.3 N/cm

Adhesion to Aluminium (after 14 days)

13.2 N/cm

Adhesion to Aluminium (initial)

10.5 N/cm

Adhesion to Steel (after 14 days)

17.4 N/cm

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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