tesa® 58381

tesa® 58381


Product Features
  • Very good adhesion strength
  • Certain flame retardancy level VTM2 according to UL94
  • Excellent electrical insulation property
All product features
Product description

The 25µm White PET filmic backing offers excellent electrical insulation property. The PET liner ensures it can be released without adhesive residue and friendly to converting process. It is equipped with FR modified acrylic to ensure the tape meet UL94 VTM-2 FR level.


Product details and specifications

Product Features

  • Very good adhesion strength
  • Certain flame retardancy level VTM2 according to UL94
  • Excellent electrical insulation property
  • Friendly to converting process
  • Halogen-free

Application Fields

  • Electrical insulation protection on metal parts with FR performance
  • Encapsulation of fire protection material
Backing material PET
Colour of liner transparent
Thickness of liner 25 µm
Total thickness 50 µm
Type of adhesive FR acrylic
Type of liner PET film
Elongation at break 111.5 %
Tensile strength 39.9 N/cm
Dielectric breakdown voltage 6,000 V
Adhesion to Aluminium (initial) 5 N/cm
Adhesion to Aluminium (after 14 days) 6 N/cm
Adhesion to ASTM (initial) 5.6 N/cm
Adhesion to ASTM (after 14 days) 6.5 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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Product comparison

Name of product tesa® 58381 tesa® 58357 tesa® 58377 tesa® 58372 tesa® 58332 50µm D/S PET tesa® 58335 150µm D/S PET tesa® 58334 100µm D/S PET tesa® 58374 tesa® 58375 tesa® 58311 Fire Protection Tape tesa® 67350
Total thickness
50 µm
100 µm
50
50 µm
50 µm
150 µm
100 µm
100
1,150 µm
50 µm
Type of adhesive
FR acrylic
tackified acrylic
FR acrylic
tackified acrylic
tackified acrylic
tackified acrylic
tackified acrylic
tackified acrylic
acrylic
acrylic
Backing material
PET
PET
PET
PET film
PET
PET
PET
PET
fibreglass
Polyimide
Humidity resistance
good
good
good
good
yes
Last updated on 9 Sept 2025