A New Chapter in Adhesive Solutions: Tunsing DS615A Hot Melt Film Leads the Way in High-Efficiency Bonding

With the rapid advancement of precision industries such as 3C electronics, 5G communications, and automotive manufacturing, the requirements for adhesive materials have evolved far beyond mere "strength." Faster processing speeds, more precise process control, broader material adaptability, and environmental sustainability have become the new benchmarks of the industry. As a leading global provider of hot melt adhesive solutions, Tunsing has officially released its latest generation of high-performance hot melt adhesive film—DS615A. This new material not only enriches Tunsing's product portfolio but also brings revolutionary upgrades to precision bonding across various industries thanks to its exceptional performance parameters.

DS615A is a thermoplastic hot melt adhesive modified from synthetic polyester, supported by a release paper, allowing for repeated heating and plasticizing bonding. Unlike traditional hot melt adhesives that flow over a broad and unpredictable temperature range, DS615A features a distinct and precise melting range of 80–105°C and a highly accurate activation temperature range of 110–135°C.

This precise activation characteristic means that in actual production, operators only need to set the machine temperature close to the designated activation range to achieve fast and thorough bonding. This significantly shortens preheating times, prevents uneven activation caused by temperature fluctuations, and drastically improves production efficiency and yield rates. Furthermore, its robust repeated plasticizing capability allows it to maintain excellent fluidity and bonding power during secondary or multi-layer lamination—offering immense convenience for complex rework and repair processes.

Beyond its precise temperature management, DS615A demonstrates its industry-leading pedigree through standout physical and chemical properties:

• Exceptional Peel Strength: Utilizing a synthetic polyester structure, DS615A achieves a massive leap in bonding strength while ensuring eco-friendliness. In standard laboratory tests (utilizing 0.1mm film bonding cotton cloth to an aluminum sheet), it delivers an average peel strength of 80 N/25mm, effortlessly meeting the most stringent structural bonding demands.

• Versatile Substrate Adaptability: DS615A exhibits equally outstanding adhesion across a wide spectrum of dissimilar materials, including textiles, metals (copper, aluminum, iron, stainless steel), plastics (PC, ABS, glass fiber, etc.), wood, and paper. This versatility allows it to seamlessly empower industries such as 3C electronics, 5G, automotive, precision instruments, medical devices, luggage, and sporting goods.

• Ethanol Resistance: Engineered to withstand common cleaning and operational environments in the electronics and medical sectors, DS615A is insoluble in ethanol, ensuring long-term bonding stability during routine maintenance.

Tunsing adheres to a rigorous scientific approach for every product. The performance parameters of DS615A are fully backed by rigorous testing in Tunsing Laboratories. Characterized via advanced Differential Scanning Calorimetry (DSC) and Thermogravimetric (TG) analysis, the film demonstrates superior stability across a wide temperature spectrum from -80°C to 200°C.

The DSC analysis explicitly pinpoints a glass transition temperature (T_g) at 16.4°C and a melting temperature (T_m) at 93.0°C, providing highly reliable data references for clients during process design and application development.

About Tunsing Shenzhen Tunsing Plastic Products Co., Ltd. is a globally recognized manufacturer of hot melt adhesive films and custom bonding solutions. Focusing on high-performance, eco-friendly hot melt bonding materials, Tunsing’s products are widely applied in 3C electronics, 5G, automotive, precision instruments, medical, luggage, and sporting goods. Tunsing connects infinite possibilities with science and innovation.