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About Basalt

Basalt is the most common volcanic rock type on earth, being a key component of oceanic crust as well as the principal volcanic rock in many mid-oceanic islands.


Basalt fibers consisting of filaments, continuously extruded from the high temperature melt of carefully selected basalt stones with a diameter of 10 µm and higher, are well above the limit of 5 µm for being respirable.

Basalt fibers products demonstrate following properties:

  • Natural, low ecological footprint
  • Unique fire and heat performance
  • Excellent mechanical properties
  • Great chemical resistance


More details on properties of basalt fibers and comparison with other fibers can be found HERE.