
Phenolic Foam Air Duct With Colored Steel. High Thermal Insulation: Thermal conductivity ranges from 0.020 to 0.037 w/m.k for superior energy efficiency. Fireproof Performance: Meets Glass 1 standard (BS 476 part 6& 7) with an oxygen index of 36-43%. Long Service Life: Designed for a lifespan of 20 to 30 years with resistance to aging. Low Air Leakage: Air leakage rate is less than 2%, ensuring efficient HVAC performance. Durable Construction: Features 0.08mm aluminum foil and 0.2mm colored steel with anti-corrosion embossed foil. Wide Temperature Range: Operates effectively within a temperature range of -180 to 150 degrees Celsius. Eco-Friendly Material: Made from rigid phenolic foam with a 60-80% recycle rate. Easy Installation: Pre-insulated design allows for quick and efficient installation in various settings.