tesa® 4950 is a high-performance, double-sided transparent PET film tape designed for reliable bonding on low surface energy (LSE) substrates. With a total thickness of 100μm and a 12μm PET backing made from 90% post-consumer recycled content, it combines sustainability with technical excellence. The tackified acrylic adhesive ensures strong initial tack and superior shear strength, even under demanding environmental conditions.
Applications
- Versatile bonding solution for a wide range of demanding industrial applications
- Enables primerless adhesion to low surface energy (LSE) substrates such as PP, PE, and EPDM
- Ideal for long-term mounting on hard-to-bond materials, including gaskets and molded components
- For industrial assembly where clean aesthetics, dimensional stability, and transparent bonding are critical
Benefits
- LSE-Optimized Adhesion: Bonds reliably to PP, PE, and EPDM— no primer needed
- High Shear Strength: Holds strong under stress and heat for long-term durability
- Dimensional Stability: PET backing ensures clean handling and precise die-cuts
- Thermal Resistance: Withstands short-term exposure up to 200°C
- Low VOC: Tested to VDA 278 for cleaner indoor air.
Storage Conditions
The Rolls should be stored in their packaging protected from light and at a temperature between 15°C to 24°C, with a relative humidity of 50% +/- 30%. When using an adhesive tape stored below 15°C, it is advisable to keep the tape at room temperature for 24 hours to preserve its characteristics.
| Manufacturer | tesa® |
|---|---|
| Backing | Recycled post-consumer PET film |
| Backing Thickness | 0,012 mm |
| Adhesive Type | modified Acrylic |
| Total Thickness | 0,100 mm (without Liner) |
| Color | Clear (00) |
| Liner | 80g/m² branded brown glassine paper (PV20), 126 g/m² white PE-coated (PV04) |
| Adhesion to Steel | 18,75 N/25 mm |
| Tensile Strength | 50 N/25 mm |
| Elongation at Break | 50% |
| Temperature Resistance | #BEZUG! |
| Length | 50 m, other lengths upon request |
| Width | 6 mm, 9 mm, 12 mm, 15 mm, 19 mm, 25 mm, 30 mm, 38 mm, 50 mm, 1372 mm, other widths upon request |
| Storage Life | The material can be stored at room temperature for at least 12 months. |
Benefits
- LSE-Optimized Adhesion: Bonds reliably to PP, PE, and EPDM— no primer needed
- High Shear Strength: Holds strong under stress and heat for long-term durability
- Dimensional Stability: PET backing ensures clean handling and precise die-cuts
- Thermal Resistance: Withstands short-term exposure up to 200°C
- Low VOC: Tested to VDA 278 for cleaner indoor air.