tesa® 4921


Product details and specifications

Backing material PE film
Total thickness 35 µm
Type of adhesive acrylic
Elongation at break 200 %
Tensile strength 6 N/cm
Humidity resistance medium
Material PE (polyethylene)
Water resistance medium
Residue free removal yes
UV resistance 6 months
Temperature resistance medium
Material of masking coverage LDPE
Tear resistance yes
Adhesion to Steel 0.8 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® 4921 tesa® 4416 tesa® 7446 tesa® 4438
Total thickness
35 µm
210 µm
99 µm
167 µm
Type of adhesive
acrylic
acrylic
silicone
acrylic
Backing material
PE film
PP film
MOPP
flat paper
Adhesion to Steel
0.8 N/cm
1.5 N/cm
1.8 N/cm
4 N/cm
Tensile strength
6 N/cm
50 N/cm
200 N/cm
33 N/cm
Temperature resistance
medium
Elongation at break
200 %
300 %
30 %
5 %
Last updated on 12 Feb 2026