tesa® 58388

55µm Single-Sided White Thermal Barrier Encapsulation PET Tape


Product Features
  • Excellent dielectric strength for electrically sensitive battery environments.
  • Thin profile for applications with space constraints
  • Supports automated converting and assembly processes.
All product features
Product description

tesa® 58388 is a 55µm Single-Sided White PET Tape with an acrylic adhesive that has been specifically designed for automation compatibility and the encapsulation of thermal barriers.


Product details and specifications

Product Features

  • Excellent dielectric strength for electrically sensitive battery environments.
  • Thin profile for applications with space constraints
  • Supports automated converting and assembly processes.
  • Improves mechanical integrity and durability of thermal barrier assemblies.
  • Low CO₂ footprint, no solvents

Application Fields

  • Electrical insulation in battery system
  • Wrapping or encapsulation
  • Encapsulation of thermal barrier materials
Adhesive Type acrylic
Backing material PET film
Liner Type PET film
Total thickness 55 µm
Elongation at break 80 %
Tensile strength 32 N/cm
Humidity resistance good
Release of liner easy
Breakdown voltage 5 KV
CTI (backing side) 400 V
Adhesion to ASTM (initial) 3.4 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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Product comparison

Name of product tesa® 58388 tesa® 58357 tesa® 58344 tesa® 58377 tesa® 58342 tesa® 54353 tesa® 58311 Fire Protection Tape tesa® 58381 tesa® 58377 tesa® 54357 tesa® 58372
Total thickness
55 µm
100 µm
90 µm
50 µm
80 µm
245
1,150 µm
50 µm
50
255 µm
50 µm
Adhesive Type
acrylic
tackified acrylic
modified acrylic
FR acrylic
modified acrylic
water-based acrylic
acrylic
FR acrylic
FR acrylic
water-based acrylic
tackified acrylic
Backing material
PET film
PET
PET
PET
PET
fibreglass
PET
PET
PET film
Humidity resistance
good
yes
good
Last updated on Aug 6, 2026