Tesa 4970 PVC double-sided adhesive tape, very strong adhesive, 50m
Colour: white-white
The tesafix® 4970 Tape is a double-sided PVC adhesive tape with a special acrylic adhesive compound. The tesafix® 4970 is characterised by high adhesive forces and is ideal for applications with the highest loads. It provides a secure bond even on rough adhesive surfaces and is highly resistant to plasticisers. Thanks to the stable adhesive carrier made of white PVC, a hard-wearing, reliable adhesive bond is made possible.Technical properties
Main applications
- Self-adhesive finishing of plastic and wooden profiles and cable ducts.
- For bonding heavy decorative pieces and displays.
- Scale, fascia and sign bonding.
- Attachment and continuous bonding of plastic, metal, paper and foil webs.
- Foam and felt bonding.
- Elongation at break: 20%.
- Adhesive: modified acrylate
- Type of cover: release paper
- Colour of cover: yellow-brown
- Tear strength: 38N/cm
- Weight of cover: 82g/m²
- Thickness of cover: 71 µm
- Thickness: 225 µm
- Backing material: PVC film
- Colour: white
- Adhesion to PS (after 14 days) 15.2 N/cm
- Adhesion to ABS (initial) 13.4 N/cm
- Adhesion to ABS (after 14 days) 14.4 N/cm
- Adhesion to PP (after 14 days) 10.8 N/cm
- Adhesion to PET (after 14 days) 11.9 N/cm
- Adhesion to aluminium (after 14 days) 12.6 N/cm
- Adhesion to PC (initial) 16.2 N/cm
- Adhesion to PVC (initial) 12.4 N/cm
- Adhesion to PE (after 14 days) 9.1 N/cm
- Adhesion to PS (initial) 14.7 N/cm
- Adhesion to PET (initial) 11.5 N/cm
- Adhesion to aluminium (initial) 11.5 N/cm
- Adhesion to PP (initial) 9.7 N/cm
- Adhesion to steel (after 14 days) 13.6 N/cm
- Adhesion to PVC (after 14 days) 16.6 N/cm
Properties:
- Static shear strength at 23°C +
- Chemical resistance +
- Moisture resistance ++
- Grip adhesion +
- Ageing resistance (UV) ++
- Long-term temperature resistance 60 °C
- Static shear strength at 40°C o
- Temp. resistance short term 70 °C
- Plasticiser resistance +
Processing and storage information
Surface condition
The surfaces must be dry, free of dust, oil, oxides, release agents and other contaminants.
Surface cleaning
The following cleaning agents, for example, can be used to remove dust, oil, release agents and other impurities:
Isopropanol/water 50/50
Heptane or ethanol
Acetone or MEK
Suitable other cleaning agents that do not leave any residues and do not attack the substrate.
Temperature
The most favourable processing temperature (object and ambient temperature) is between +15°C and +25°C.
Pressure
The strength of the bond is directly dependent on the contact that the adhesive has with the surfaces to be bonded. A short, high pressure (e.g. with a squeegee, pressure roller or pressure device, etc.) ensures good surface contact. The type and amount of pressure depends on the material (thin- or thick-walled, etc.) and the geometry of the components. Rule of thumb: approx. 20 N/cm².
Storage
The rolls should be stored in their packaging protected from light at a temperature between +15°C and +25°C and a relative humidity of 50%.
Note
The technical information is given to the best of our knowledge, but is not binding. The information only has the character of a general recommendation. The suitability of the product for the desired purpose must be ensured by own tests under the original conditions. A legal assurance of certain properties cannot be derived from our information.
