High strength Low thermal conductivity Asbestos-free Product Features 1, the safe use of warm clothing as much as 65O °C, higher than the ultra-fine glass wool products 30O °C, higher than the expanded perlite products, 150 °C. 2, low thermal conductivity (γ ≤ 0.56w/mk) is far lower than other rigid insulation materials and composite silicate insulation material. 3, bulk density of small, rigid ...