fiberglass wool Thickness: 25-200mm Density: 10,12,16,20,24,32,40,48kg/m3 ( 10-50kg/m3) fiberglass woolGLASS Wool is a lightweight glass ... 400mm is available)Thickness: 25-200mmDensity: 10,12,16,20,24,32,40,48kg/m3( 10-50kg/m3)Special specification prducts may be made ...