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fiber glass wool ProductDescription: Glass wool board is in rectangle with many choices of unit weight. The heat insulation materials are usually using "2b" centrifugal glass temperature keeping board, the average diameter of fibre is around 7 micron with the types of faced or no face for all. With the features of light, wear and tear resistance and tenacity, it satisfies the heat insulation requirements. It can save the energy, reduce heating wastage and cut the cost, if build it correctly, the transmission of sound wave can be reduced effectively. Usage: Glass wool board is the unearthly sound absorbing and warm keeping material. It has been widely applied for heat insulation of house wall, compartment; temperature keeping of computer rooms, refrigerator; denoise of power plants and pump rooms; adjustment of Hi-fi etc. Standard Specification: Unit Weight kg/m3 24,32,40,48,56,64,80,96 Thickness mm 15,20,25,30,40,50,75,100 Size mm 1200*600 R-Value (ASTMC177 & ASTMC518) Heat Resistance Value (On 24) Thickness(mm)48kg/m356kg/m364kg/m396kg/m3250.80.80.80.8401.21.21.2/501.51.51.6/R=Thickness/Heat Conduction Coefficient (Unit: m2·/W) Package: Choices of plastic and case packaging.