LONGSUN LS7740 Heat-Cured Silicone Rubber Compound
2026-04-29
With the rapid development of the electronics and electrical industry, cables—serving as the “lifelines” for energy and signal transmission—are subject to increasingly stringent requirements regarding material performance. Dongguan Langsheng Materials Technology Co., Ltd. has deep expertise in the silicone rubber sector. Leveraging its technical expertise gained from leading the drafting of the national standard GB/T 33430-2016 “Silicone Rubber Compounds for Wires and Cables,” the company has launched the LS7740 thermosetting silicone rubber compound. With its comprehensive superior performance, this compound injects core momentum into cable manufacturing.
✨ Adapting to Production Rhythms, Delivering a High-Efficiency Processing Experience
The efficiency of cable manufacturing is determined the moment the compound hits the rollers. LS7740 features a formulation optimized to address pain points in the processing stage, offering just the right amount of plasticity. It loads onto rollers effortlessly, with no sticking or slippage throughout the process, significantly reducing equipment cleaning costs and downtime losses.
During the extrusion process, LS7740 demonstrates exceptional extrusion smoothness. The compound flows uniformly and stably, resulting in a smooth and fine extrusion surface that meets high-quality appearance requirements without the need for additional finishing. Whether it’s the insulation layer of complex-structured data cables or the jacket layer of large-diameter rubber hoses, it enables continuous and stable production, helping enterprises increase production capacity and reduce defect rates.
🛡️ Backed by robust performance, reinforcing the safety barrier for cables
As the “protective armor” of cables, a material’s mechanical strength and electrical properties directly impact product reliability. LS7740 offers balanced mechanical properties, with excellent performance in tensile strength and elongation at break, and particularly stands out for its tear resistance. It withstands external pulling forces and friction during installation and use, effectively extending cable service life.
At the same time, LS7740 offers exceptional electrical insulation properties, with parameters such as insulation resistance and breakdown strength far exceeding industry standards. It maintains stable insulation performance even in complex environments like high humidity and high temperatures, providing reliable protection for signal transmission and power delivery. It is particularly suitable for products with extremely high electrical safety requirements, such as data cables and industrial cables.
🚀 Diverse Application Scenarios, Unlocking Endless Industry Potential
Thanks to its comprehensive advantages that balance processability and performance, LS7740 has become a versatile solution in the cable industry:
Data Cables: Suitable for the insulation and sheath layers of data cables with USB, Type-C, and other interfaces, ensuring stable high-speed signal transmission while offering excellent flexibility to meet the demands of frequent bending;
Hose Applications: Used in the manufacture of industrial hoses and automotive fuel hoses, it offers excellent oil resistance and aging resistance, enabling long-term service under harsh operating conditions;
Specialty Cable Applications: It also delivers outstanding performance in high-temperature and flame-retardant cables, providing material support for high-end sectors such as aerospace and new energy.
From efficient production on the factory floor to reliable end-use applications, Langsheng’s LS7740 thermosetting silicone rubber compound is meticulously crafted with attention to detail. It offers cable manufacturers a material solution that balances efficiency and quality, helping the industry advance toward a new phase of development with higher standards.
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