Ceramic Spun Fiber Bulk
High Purity 2300°F


Ceramic Spun Fiber Bulk manufactured from high purity alumina and silica raw materials for high-temperature applications up to 2300°F. If a higher operating temperature is needed, please use our Zirconia Grade Ceramic Spun Fiber Bulk.

SKU: N/A Category:


Temperature Rating: 2300℉

Grade: High Purity

Fiber: Spun

Product Documentation


  • Resists temperatures as high as 2300º F, fire resistant
  • Low thermal conductivity, low heat storage, and excellent thermal shock resistant
  • High-temperature stabiliy and consistent fiber properties
  • Excellent chemical stability and corrosion resistance (Exluding hydrofluoric, phosphoric acids and concentrated alkalis)
  • Lightweight, structure uniformity, and low thermal conductivity
  • Lubricants can be added to fibers to enhance specific properties for different applications
  • If exposed to water or steam, thermal and physical properties are restored upon drying
  • Low thermal shrinkage at high temperatures
  • Several grades and temperature limits available
  • Resist oxidation and reduction
  • Low sound absorption


  • Thermal and electrical insulation
  • High-temperature fill and packing for expansion joints, furnace base seals, Tube seals, Burner tile packing
  • Feedstock in manufacturing processes or other applications
  • Manufacture of other ceramic fiber products such as high-temperature boards,  felts, & paper
  • Specialized vacuum-formed and moldable shapes / products
  • Combustion chambers for commercial & residential boilers
  • Fireplace logs and panels for gas fireplaces
  • Chimney insulation
  • Riser sleeves for molten metal casting
  • Tap out cones for molten metal applications
  • Low mass kiln cars


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