![[Master PI]](/en/files/images/201910/39/4939-master-pi,151855_fixedwidth_9.jpg "4939 [Master PI]")
[Master PI]
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Product description
tesa® 4939 is a double-sided floor laying tape. It consists of a strong PET-cloth backing in combination with a differential rubber adhesive system.
The special formulated adhesive on the open side combines a high initial bonding power with a residue free removability up to 14 days from the most common surfaces. (Needs to be tested individually before usage!)
Main applications
Temporary floor laying during fairs, exhibitions, conventions & renovations
Technical properties
Backing material
cloth
Color
white
Total thickness
250 µm
Type of adhesive
synthetic rubber
Elongation at break
40 %
Tensile strength
50 N/cm
Type of liner
glassine
Colour of liner
brown
Adhesion properties
Adhesion to PE (after 14 days)
2 N/cm
Adhesion to PE (covered side, after 14 days)
5 N/cm
Adhesion to PE (covered side, initial)
4.5 N/cm
Adhesion to PE (initial)
2.5 N/cm
Adhesion to PP (after 14 days)
2.5 N/cm
Adhesion to PP (covered side, after 14 days)
5 N/cm
Adhesion to PP (covered side, initial)
6.5 N/cm
Adhesion to PP (initial)
4.5 N/cm
Adhesion to Steel (after 14 days)
5.5 N/cm
Adhesion to Steel (covered side, after 14 days)
8 N/cm
Adhesion to Steel (covered side, initial)
7.5 N/cm
Adhesion to Steel (initial)
5 N/cm
Rating properties
Temperature resistance short term
80 °C
Temperature resistance long term
40 °C
Tack
++
Ageing resistance (UV)
o
Humidity resistance
+
Resistance to chemicals
+
Static shear resistance at 23°C
++
Static shear resistance at 40°C
+
Static shear resistance at 70°C
o
Fogging
++
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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