Centrifugal Glass Wool Board Production SpecificationsVolume weight: 24-96kg/m3 Thickness: 25-150mm Length: 600mm-2400mm Width: 600mm-1200mmProduction TechniqueGlass wool Boards are board materials made from superfine rock wool felt with addition of phenol resin `under pressure and heating. The surface may be coated with PVC film or aluminum foil.These products are characterized by their light weight, high deadening coefficient, remarkable fire resistance and stable chemical property.Technical IndexesItem Unit IndexStandardDensity Kg/m310-100GB/T5480.3-1985Average fiber diameterμm5.5GB/T5480.4-1985Water absorption %≤1GB/T3007-1982Grade of combusibilityNo fire A ClassGB8624-1997Reshrinking temp°C≥250GB/T11835-1998Heat Conductibilityw/(m.k)0.038-0.06GB/T10294-1988Non-Water-affinity%≥98.2GB/T10294-1988Moisture Rate%≤5GB/T16401-1986Sound absorption coefficient24kg/m³ 200HZGBJ47-83Usage Temperature°C-120-400Applications1. Heat and coldness preservation and deadening of roof.2. Heat and coldness preservation of buildings.3. Deadening treatment of recreational place, cinema, theater, TV station, broadcast station, laboratory, etc.