Unique combination of properties Extended range of application temperatures(up to +700â Increased mechanical strength (25% higher than E-glass) Fields of application Basalt fiber roving â Production of basalt fabrics, geogrids, thermal insulation mats, composites (pipes, bars and others) Basalt fiber yarn â Production of fabrics, tapes, meshes, cords Chopped basalt fiber â Reinforcing filler for fibrous concrete, production of thermal insulation mats, composites Basalt fabric âProduction of composites; covering of thermal insulation mats, insulation of industrial equipment, furnace,pipework, and other hot surfaces