Basalt roving is a bundle of continuous unidirectional complex basalt fibers. Roving has high natural strength, resistance to aggressive environments, long service life and excellent electrical insulation properties. In terms of its technical characteristics, basalt roving surpasses S-glass and E-glass in many respects, and is not much inferior to carbon. Basalt roving is extremely heat-resistant: the temperature range for long-term use is from –260°C to +680°C. It can withstand temperatures up to 1000 °C for a short time.