tesa® 4959

100 µm double sided translucent premium non woven tape

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).

Main features:

Skin contact certification according to ISO 10993-5 and ISO 10993-10
Reliable bond, often also on low surface energy surfaces
Light and aging-resistant acrylic adhesive for long-term applications
Excellent initial tack and peel adhesion
Good 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
tesa® 4959 is ideally used for industrial mounting, high-performance lamination, and splicing applications
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

Product Construction:

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

Adhesion to:

Adhesion to Steel (initial) 8 N/cm
Adhesion to Steel (after 14 days) 8.5 N/cm

Property evaluation:

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

Additional Info
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)

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)