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Ceramic Fiber Bulk

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Ceramic Fiber Bulk

REFSOURCE Ceramic Fiber Bulk from URC is produced by the fusion of high-purity alumina/silica raw materials in an advanced electric arc furnace. The fibers produced are exceptionally clean and consistent in quality and texture.

Ceramic Bulk Fibers are loose, long and flexible with high refractory properties and are produced by the "blown" and the "spun" processes. They are used as the base for the production of blanket, moldable, and vacuum formed board and shapes.


  • Low thermal conductivity
  • Low heat storage
  • Excellent thermal shock resistance
  • Use limit to 1482 °C (2700 °F)
  • Low sound transmission
  • Contains no asbestos


  • Packing expansion joints in high temperature furnace
  • low mass kiln cars
  • Vacuum formed and moldable products

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