Armil CFS stocks several grades of Fiberfrax alumina silica ceramic fibers. Fiberfrax fibers are made from kaolin materials forms in a unique spinning operation. Fiberfrax bulk fibers are the basis for other  Fiberfrax products. Fiberfrax fibers offer high temperature stability, low thermal conductivity, low heat storage, and excellent thermal shock resistance. The melting point of Fiberfrax bulk fiber exceeds 3200°F.

Fiberfrax spun bulk is available in 40lb bags,