tesa® 4959

100 µm double sided translucent premium non woven tape

Sustainable Aspects

Responsibly sourced paper liner (certified)
Unbleached paper with 30% recycled fibers

Product Features

High initial tack and peel adhesion
Skin contact certification according to ISO 10993-5 and ISO 10993-10
Light and aging-resistant acrylic adhesive for long-term applications

All product features

Product description

tesa® 4959 is a double-sided non-woven industrial mounting and splicing tape with a highly tackified acrylic adhesive. The premium non-woven tape is, for instance, used for mounting signs and nameplates or other mounting and high-performance lamination applications. tesa® 4959 is especially designed to connect flexible materials to one another. The mounting and splicing tape is able to withstand numerous environmental factors such as humidity, UV light, and temperatures of up to 200°C for limited periods of time. The tackified acrylic adhesive offers excellent hold on various surfaces, very high tack, and good shear strength. The adhesive is coated on a flexible and conformable cellulose non-woven backing that even conforms to difficult 3D shapes.
tesa® 4959 is also available in a 160 µm version (tesa® 4962).

Product details and specifications

Product Features

High initial tack and peel adhesion
Skin contact certification according to ISO 10993-5 and ISO 10993-10
Light and aging-resistant acrylic adhesive for long-term applications
Very good bonding strength, even to low surface energy materials
Outstanding converting and die-cutting properties
Highly conformable to follow difficult 3D shapes due to non-woven backing

Application Fields

tesa® 4959 is ideally used for industrial mounting, high-performance lamination, and splicing applications
Mounting signs, covers and nameplates
Laminating insulation materials and foams for HVAC (heating, ventilation, and air conditioning) seals
Mounting plastic bags, dispatch bags, continuous stationery, posters, etc.
Splicing of paper and film webs

Sustainable Aspects

Responsibly sourced paper liner (certified)
Unbleached paper with 30% recycled fibers

Adhesive Type	tackified acrylic
Backing material	non-woven
Color	translucent
Color of liner	brown
Liner Type	paper
Thickness of liner	71 µm
Total thickness	100 µm

Adhesive Type	tackified acrylic
Backing material	non-woven
Color	translucent
Color of liner	brown
Liner Type	paper
Thickness of liner	71 µm
Total thickness	100 µm

Elongation at break	2 %
Tensile strength	8 N/cm
Tack	very good
Temperature resistance min.	-40 °C
Static shear resistance at 40°C	medium
Ageing resistance (UV)	very good
Temperature resistance long term	80 °C
Chemical Resistance	good
Static shear resistance at 23°C	good
Temperature resistance short term	200 °C
Humidity resistance	very good

Elongation at break	2 %
Tensile strength	8 N/cm
Tack	very good
Temperature resistance min.	-40 °C
Static shear resistance at 40°C	medium
Ageing resistance (UV)	very good
Temperature resistance long term	80 °C
Chemical Resistance	good
Static shear resistance at 23°C	good
Temperature resistance short term	200 °C
Humidity resistance	very good

Adhesion to ABS (initial)	7.5 N/cm
Adhesion to ABS (after 14 days)	9 N/cm
Adhesion to Aluminium (initial)	7.5 N/cm
Adhesion to Aluminium (after 14 days)	8 N/cm
Adhesion to PC (initial)	9.5 N/cm
Adhesion to PC (after 14 days)	14 N/cm
Adhesion to PE (initial)	4 N/cm
Adhesion to PE (after 14 days)	4.5 N/cm
Adhesion to PET (initial)	7 N/cm
Adhesion to PET (after 14 days)	7.5 N/cm
Adhesion to PP (initial)	5.5 N/cm
Adhesion to PP (after 14 days)	6.5 N/cm
Adhesion to PS (initial)	8.5 N/cm
Adhesion to PS (after 14 days)	9 N/cm
Adhesion to PVC (initial)	6.5 N/cm
Adhesion to PVC (after 14 days)	14 N/cm
Adhesion to Steel (initial)	8 N/cm
Adhesion to Steel (after 14 days)	8.5 N/cm

Adhesion to ABS (initial)	7.5 N/cm
Adhesion to ABS (after 14 days)	9 N/cm
Adhesion to Aluminium (initial)	7.5 N/cm
Adhesion to Aluminium (after 14 days)	8 N/cm
Adhesion to PC (initial)	9.5 N/cm
Adhesion to PC (after 14 days)	14 N/cm
Adhesion to PE (initial)	4 N/cm
Adhesion to PE (after 14 days)	4.5 N/cm
Adhesion to PET (initial)	7 N/cm
Adhesion to PET (after 14 days)	7.5 N/cm
Adhesion to PP (initial)	5.5 N/cm
Adhesion to PP (after 14 days)	6.5 N/cm
Adhesion to PS (initial)	8.5 N/cm
Adhesion to PS (after 14 days)	9 N/cm
Adhesion to PVC (initial)	6.5 N/cm
Adhesion to PVC (after 14 days)	14 N/cm
Adhesion to Steel (initial)	8 N/cm
Adhesion to Steel (after 14 days)	8.5 N/cm

Liner variants:

PV0: brown glassine paper (69µm; 80g/m²)
PV6: red MOPP film (80µm; 72g/m²)
PV36 double liner: brown glassine paper (69µm; 80g/m²)
Sustainability Marker valid for paper liner version

For spools, it is recommended to use tesa® dispensers to achieve optimal results.
According to VDA278 analysis, tesa® 4959 does not contain any single substances restricted by the drafted GB regulations (China) as well as the indoor concentration guideline by Health, Labour and Welfare Ministry (Japan).

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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