Glass wool felt is available in boards or felt in rolls.It is widely used in the heat preservation,thermal insulation and noise reduction for high temperation mediums such as boilers,reaction vessels,shells of tank,piping etc.in power plant,chemical industry and pharmaceutical industry. Specification: 1)Density: 10-80 kg/m3 2)Average fiber dia.:5 3)Reshrinking temp: 500 C degree 4)Thermal conductibility: 0.041-0.07 w/m.k 5)Grade of combustibility: Non-combustible Grade A 6) Hydrophobicity: more than 99%