tesa® 4576 High Barrier
Venting tape
Product description
tesa® 4576 is a highly elastic single sided adhesive tape. It consists of a PET/cellulose non-woven fabric coated with an acrylic adhesive.
Its high gas permeability through the adhesive and non woven carrier makes it the ideal barrier solution for any kind of foaming processes.
Features:
- gas permeable backing and adhesive
- low unwinding force
- conformable and elastic
- moisture resistant
- waterproof
- ageing-resistant
Product details and specifications
Application Fields
- Venting tape for foaming processes e.g. refrigerators
- Suitable for applications in the automotive industry, e.g. production of dashboards
| Backing material | non-woven |
|---|---|
| Colour | white |
| Total thickness | 140 µm |
| Type of adhesive | acrylic |
| Elongation at break | 17 % |
|---|---|
| Tensile strength | 10 N/cm |
| Hand tearability | good |
| Air permeability | 6 cm³/cm²xs |
| Solvent free | yes |
| Operation temperature up to | 160 °C |
| Low unwinding force | good |
| Ageing resistance (UV) | very good |
| Adhesion to ABS (initial) | 2.2 N/cm |
|---|---|
| Adhesion to PE (initial) | 0.8 N/cm |
| Adhesion to PS (initial) | 2 N/cm |
| Adhesion to steel | 1 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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Last updated on Jun 18, 2026