tesa® 8857

50µm double-sided translucent non-woven tape


Product description

tesa® 8857 is made from special tackified acrylic adhesive system which has excellent high temperature resistant property, ideal for demanding FPC ( Flat Printed Circuit) mounting applications.

The acrylic adhesive gives this product an excellent temperature resistance up to 260°C. The highly conformable ultra thin non-woven backing and highly temperature resistant release liner ensures it can be easily released without adhesive residue left or liner broken after reflow oven process.

Key features of tesa® 8857:

1 High temperature resistance with sufficient holding power and peel strength even after solder reflow process
1 High tensile strength, good repulsion resistance
1 Excellent die-cutting properties and very low oozing due to special backing
1 High conformability for uneven surfaces
1 High aging resistance
1 Conforming to RoHS


Product details and specifications

Application Fields

Flat Printed Circuit mounting application of electronic components, subjected to high temperature processing and operating environments.
Backing material ultra thin non-woven
Colour translucent
Colour of liner white
Thickness of liner 86 µm
Total thickness 50 µm
Type of adhesive tackified acrylic
Type of liner heat resistant paper
Weight of liner 100 g/m²
Adhesion to ABS (initial) 4.8 N/cm
Adhesion to ABS (after 14 days) 6 N/cm
Adhesion to Aluminium (initial) 4.5 N/cm
Adhesion to Aluminium (after 14 days) 5.9 N/cm
Adhesion to PC (initial) 5.8 N/cm
Adhesion to PC (after 14 days) 6.9 N/cm
Adhesion to PET (initial) 5 N/cm
Adhesion to PET (after 14 days) 5.4 N/cm
Adhesion to PI (initial) 5.9 N/cm
Adhesion to PI (after 14 days) 6 N/cm
Adhesion to Steel (initial) 5.3 N/cm
Adhesion to Steel (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® 8857 tesa® 8851 tesa® 68542 tesa® 68598 tesa® 4720 tesa® 68540 tesa® 8853 PV40 tesa® 8853 PV41 tesa® 58375 tesa® 4960 tesa® 4961
Total thickness
50 µm
30 µm
50 µm
250
100 µm
30 µm
50 µm
50 µm
100 µm
205 µm
Type of adhesive
tackified acrylic
tackified acrylic
tackified acrylic
modified acrylic
tackified acrylic
tackified acrylic
tackified acrylic
tackified acrylic
acrylic
natural rubber
Backing material
ultra thin non-woven
ultra thin non-woven
PET film
PET film
PET film
PET film
ultra thin non-woven
ultra thin non-woven
non-woven
flat paper
Colour
translucent
translucent
transparent
transparent
transparent
transparent
translucent
translucent
transparent
white
Ageing resistance (UV)
very good
very good
very good
very good
very good
medium
Static shear resistance at 23°C
medium
good
good
good
Humidity resistance
very good
very good
low
very good
very good
very good
medium
Last updated on 15 Jun 2026