Glasswool (glass wool) blanket: Spec.: 1. Resin bond content: 3 ~ 8 % 2. Density: 16 kg/m3, 20 kg/m3, 24 kg/m3, 32 kg/m3 3. Thermal conductivity (705c): 0.042 ~ 0.049 w/m.K Subject to density and thickness 4. Average acoustic absorptivity: 0.8 ~ 1.1 Subject to density, thickness and frequency 5. Max. Service temperature: 300c 6. Average fibre diameter: