tesa introduces two double-sided mounting tapes designed for low surface energy (LSE) substrates, including many plastics and composites. The tesa 4950 and tesa 74515 models are targeted at applications where traditional joining methods, such as liquid adhesives, screws, or rivets, do not deliver the desired result. These solutions are used in industrial assembly in vehicles, household appliances, and electrical equipment, and their thin construction aids conformability. They are suitable for bonding foams, films, and flexible materials, and for mounting on hard-to-bond materials, including textured plastics. According to the manufacturer, the performance of the new tapes has been validated in tests, and consistent quality is intended to ensure repeatable performance in use.
The company states that both tapes do not require a primer, which simplifies the bonding process and reduces the number of process steps. It also reports resistance to short-term exposure to temperatures up to 200°C and to long-term exposure up to 100°C. It is indicated that the products do not use additional chemicals for surface preparation. The manufacturer also declares competitive pricing compared with alternative LSE tapes available on the market.
Ta pes for low surface energy substrates
The new tesa solutions were developed for substrates that are difficult to wet and bond, where combining adequate adhesion with shear resistance and dimensional stability in converting processes is important. Both products are based on an acrylic adhesive layer optimized for LSE, with each model addressing different application needs, from high conformability to precise die-cutting in serial production.
tesa 74515
tesa 74515 is a flexible double-sided tape with an adhesive mass formulated for demanding substrates. It provides high peel adhesion, strong initial tack, and shear strength. Its conformability suits applications with varied die-cut shapes and sizes, facilitating assembly of components with complex geometries.
tesa 4950
tesa 4950 uses the same acrylic adhesive layer as tesa 74515, and its design is focused on dimensional stability in converting processes. The tape is suitable for precise die-cutting and efficient handling in production. The PET carrier, made of 90% post-consumer recycled content, ensures clean handling and precise die-cutting.
Information availability
Those interested in the parameters and applications of the LSE tapes tesa 4950 and tesa 74515 can obtain detailed information from the company's representatives.
