tesa® 66320

20µm single-sided amber polyimide tape

Product Features
  • Thickness: 20µm
  • Excellent anti-repulsion properties
  • Very good chemical and temperature stability
All product features
Product description

tesa® 66320 is an ultra-thin single sided tape, consisting of a polyimide film backing and special anti-repulsion acrylic adhesive
Color: Amber

Product details and specifications

Product Features

  • Thickness: 20µm
  • Excellent anti-repulsion properties
  • Very good chemical and temperature stability
  • Very good insulation resistance properties
  • Flame retardant property

Application Fields


  • Li-battery edge wrapping

  • Fixing or wrapping applications where insulation resistance, flame retardant or high temperature is required
Backing material Polyimide
Colour of liner transparent
Thickness of liner 50 µm
Total thickness 20 µm
Type of adhesive acrylic
Type of liner PET
Elongation at break 30 %
Tensile strength 20 N/cm
Temperature resistance short term duration 140 °C
Dielectric breakdown voltage 3,600 V
Temperature resistance long term duration 85 °C
Adhesion to steel 2 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 information_tesa® 66320_en-GB 54.8 kB
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Product comparison

Name of product
three layered adhesive sheets with a brown base, a white middle layer, and a cream top layer slightly peeled back on a white background (This text has been generated by AI)
tesa® 66320
tesa® 58377
tesa adhesive tape layers separated showing beige top layer, transparent middle layer, and black bottom layer on white background (This text has been generated by AI)
tesa® 67350
tesa adhesive tape layers separated showing beige top layer, transparent middle layer, and black bottom layer on white background (This text has been generated by AI)
tesa® 67320
tesa adhesive tape layers separated showing beige top layer, transparent middle layer, and black bottom layer on white background (This text has been generated by AI)
tesa® 58356
transparent blue adhesive film partially peeled off on white background, showing layered structure of tesa tape (This text has been generated by AI)
tesa® 58357
stack of three rectangular adhesive sheets in beige and black, shown in a layered arrangement on a white background (This text has been generated by AI)
tesa® 7250
Product-Illustration_Anti-Repulsion_300dpi.png
tesa® 58351
tesa adhesive tape layers separated showing beige top layer, transparent middle layer, and black bottom layer on white background (This text has been generated by AI)
tesa® 67310
three layered adhesive sheets with a brown base, a white middle layer, and a cream top layer slightly peeled back on a white background (This text has been generated by AI)
tesa® 66330
tesa adhesive tape layers separated showing beige top layer, transparent middle layer, and black bottom layer on white background (This text has been generated by AI)
tesa® 67330
Total thickness
20 µm
50
50 µm
20 µm
130
100 µm
73
10 µm
30 µm
30 µm
Type of adhesive
acrylic
FR acrylic
acrylic
acrylic
tackified acrylic
tackified acrylic
tackified acrylic
tackified acrylic
acrylic
acrylic
acrylic
Backing material
Polyimide
PET
Polyimide
Polyimide
PET
PET
PET
PET
Polyimide
Polyimide
Polyimide
Temperature resistance short term duration
140 °C
125 °C
140 °C
140 °C
200 °C
140 °C
140 °C
Temperature resistance long term duration
85 °C
70 °C
85 °C
85 °C
125 °C
100 °C
85 °C
85 °C
Dielectric breakdown voltage
3,600 V
4,500 V
3,700 V
2,400 V
13,330 V
4,000 V
6,500 V
1,500 V
3,600 V
3,600 V
Tensile strength
20 N/cm
20 N/cm
13 N/cm
165
70 N/cm
30 N/cm
20 N/cm
20 N/cm
Last updated on 29 Jan 2026