Commissioned in the second stage of the production of basalt fibers by pulling the air. For the production of HE-22-2 uses a high-melting rock basalt, with a high content of silica and alumina, which improved the softening temperature to 9700S.
Recall that the primary use of HE-22 — is to use it in the exhaust systems of vehicles with internal combustion engines as a cheaper, but not inferior in quality, and similar fibers advantex powertex. New HE-22-2 can withstand even higher temperatures, which makes it ideal for use in this area.