Accelerator Irradiation Cross-linked LSZH Flame Retardant Insulation (Class B1/B2) Launched, Optimized for High-standard Construction Engineering Cables

With the continuous upgrading of national and international building fire safety codes, high-rise buildings, hospitals, rail transit, and underground pipe gallery projects have put forward higher requirements for cable flame retardancy, insulation stability, and environmental performance. Traditional silane cross-linking, UV cross-linking, and thermoplastic LSZH materials have obvious defects such as uneven cross-linking, unstable batch performance, and insufficient high-grade flame retardancy.
To solve industry pain points, our newly developed Accelerator Irradiation Cross-linked LSZH Flame Retardant Insulation with Class B1/B2 fire ratings has been officially released. Adopting high-energy electron beam irradiation cross-linking technology, the product achieves a uniform and stable cross-linking effect, perfectly matching the quality and compliance requirements of high-end construction engineering cables.
Core Product Advantages
1. Uniform & Stable Irradiation Cross-linking
Precise accelerator dose control realizes thorough and consistent cross-linking from the inside to the outside of cable insulation, free from the influence of ambient temperature and extrusion thickness. The stable 3D molecular network structure greatly improves insulation stability, mechanical strength, and aging resistance, ensuring long-term safe operation of construction cables.
2. Dual B1/B2 Fire Ratings for Full-scenario Coverage
Class B1 Grade: Complies with GB 31247 high-standard fire resistance specifications, featuring low flame spread, low heat release, and ultra-low toxic smoke emission. It is specially designed for high-risk construction scenarios, including skyscrapers, hospitals, metro tunnels, underground utility tunnels, and data centers.
Class B2 Grade: Balances excellent flame retardancy and superior processing fluidity, with smooth extrusion performance and no surface defects. It is cost-effective and suitable for residential buildings, commercial plazas, office buildings, and conventional public construction projects.
3. Excellent Overload & High Temperature Resistance
The irradiation cross-linking modification greatly enhances the thermal stability and overload resistance of the material. It effectively avoids insulation softening, deformation, and leakage risks caused by line overload and high temperature, improving the overall safety of building electrical systems.
4. LSZH Eco-friendly & Green Building Certified
Halogen-free, lead-free, and heavy metal-free formula ensures low smoke and non-toxic combustion. It meets international green building and environmental protection standards, avoiding secondary fire pollution and equipment corrosion, and is fully compatible with low-carbon and energy-saving building construction.
5. High Processing Compatibility & Mass Production Yield
Compatible with most conventional cable extrusion equipment without production line renovation. The mature irradiation cross-linking process ensures stable batch quality and high finished product yield, reducing outsourcing costs and production losses for cable manufacturers.
Application & Market Prospect
Driven by global urban renewal and building safety upgrading, high-performance B1/B2 grade LSZH cross-linked cables have become the mainstream demand for modern construction engineering. This accelerator irradiation cross-linked LSZH insulation material is widely used in building power cables, fire-resistant cables, control cables, and intelligent weak current cables, providing reliable and cost-effective material solutions for high-standard building electrical projects.
Complete third-party test certificates and qualification documents are available. We provide free sample testing, customized formula adjustment, and professional on-site technical support to help global cable manufacturers accelerate mass production and market expansion.