
High-Quality Thermal Insulation Cotton/Insulation Cotton/Exterior Wall Insulation Glass Wool Material Aluminum Foil. Superior Thermal Insulation: Coefficient of heat conductivity as low as 0.035W/m.K for maximum energy efficiency. Excellent Sound Absorption: Average NRC of 1.00 provides exceptional noise reduction and acoustic comfort. Fire Resistant Material: Non-combustible with flame propagation of 25 and diffustivity of 50 for high safety. Long Service Life: Quality guarantee period of 20 years ensures long-term reliability and performance. Corrosion and Moisture Resistant: No chemical reaction and moisture absorption less than 3% by weight. Lightweight and Durable: Low volume density with high tensile strength and exceptional resilience. Wide Application Scope: Suitable for construction, ships, pipelines, high-speed rail, and aerospace. Fast Delivery Options: Stock items available in 1-3 days; standard items in 3-7 days.