Basalt fiber needle felt is a heat-resistant and flexible insulator with low thermal conductivity. It can endure temperatures from -260° C up to 900° C. It can easily mold to complex shapes and is chemically stable and durable. It is great for sound insulation, thermal preservation, fireproofing, filtration, and exhaust systems. It is noncombustible and suitable for fire-resistant insulation in electrical and underground applications.
