Heat insulation ,sound absorption,fireproof Length: 10000mm, 12000mmWidth: 1200mm, 600mmThickness: 50-200mmDensity: 10 ... A1(Nonflaming)Water absorption 0.2%Water repellent rate: 99%Sound Insulation Coefficient: 0.8-1.1Slag nodule content : less than ... property, our glass wool, when reach the destination, will rebound almost to the original level in 24 hours after been unpacked. fiber glass wool felt