Element PU Sandwich Panels Pass Full Third-Party Performance Testing with Top-tier Fire & Thermal Insulation Performance
Superior Fire Safety Performance The PU panel achieves GB 8624 B1(C) flame retardant grade, the key fire safety standard for building insulation materials. It features a limiting oxygen index of 32.4%, far exceeding the qualified threshold of 30%. During combustion tests, the panels produce no molten dripping that causes secondary ignition, with a maximum flame height below 150 mm within 60 seconds, effectively restraining flame spread and minimizing fire risks for cold storage and industrial buildings.
Ultra-Low Thermal Conductivity for Maximum Energy Savings Optimized polyurethane foaming technology enables an ultra-low thermal conductivity of 0.0203 W/(m·K), significantly lower than the industry qualified standard of 0.024 W/(m·K). The high closed-cell structure effectively blocks cold and heat transfer, greatly reducing refrigeration energy consumption for cold storage operations and delivering long-term energy-saving benefits for commercial and industrial cold chain projects.
Extreme Temperature Weathering Stability After 72 hours of continuous extreme temperature cycling tests ranging from -40℃ ultra-low temperature to 65℃ high temperature, the panels maintain intact surface structure with no cracking, deformation, aging or performance attenuation. This excellent weather resistance adapts to diverse global climatic environments, from frigid high-latitude regions to tropical high-temperature and humid areas, ensuring stable long-term operation of overseas projects.
Reliable Mechanical & Waterproof Performance With a standard density of 38kg/m³, the panels deliver a bending strength of 319kPa and compressive strength of 161kPa, fully meeting the mechanical load requirements of on-site hoisting, installation and long-term use. Meanwhile, the ultra-low water absorption rate of 1.8% prevents moisture penetration and mold growth, maintaining stable insulation performance in humid and rainy environments.
Company Statement "Quality compliance and technical stability are the core competitiveness of our products serving global cold chain and industrial construction projects," said the principal of Element. "This full-item third-party test certification is an authoritative recognition of our product R&D and production quality control. We strictly follow international engineering standards to provide safe, energy-saving and durable PU sandwich panel solutions for global clients, supporting project material approval, fire inspection and long-term operational stability."
Focusing on the R&D, production and export of high-quality PU cold storage sandwich panels and industrial building enclosure systems, Element owns automated production lines and a complete quality control system. Its products have been exported to more than 50 countries and regions worldwide, widely applied in cold storage logistics, food processing cleanrooms, pharmaceutical workshops, and industrial factory enclosure projects.
With this full performance certification, Element further consolidates its product quality advantages in the global cold chain insulation material market, providing more reliable, standardized and compliant building material choices for international engineering contractors and project owners.