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Ceramic Fiber Cotton

Ceramic Fiber Cotton

Insulation Material

Item CodeA3202


Ordinary type of ceramic fiber cotton, which is made from flint clay clinker, is produced by resistance furnace melting, spraying or spinning process.

Types of high pure and high alumina ceramic fiber cotton are both made from synthetic material of high pure alumina silica powder, and are also produced by resistance furnace melting, spraying or spinning process.

Zirconium containing ceramic fiber cotton, with synthesis of high pure alumina silica powder and zirconium quartz sand as raw materials, is produced by resistance furnace melting, spraying or spinning process.

Features of spinning fiber cotton:

Long spinning fiber; low slag ball content; low non-fiber material content; The untreated long spinning fiber produced by spinning fiber technology can be used as gap filling material of wall lining between high temperature furnace and heating device; Its excellent spinnability can also make it as raw material of textiles.

Features of spraying fiber cotton:

No lubricant; no treatment; low slag ball content; the fiber produced by spraying and blowing process is the filling material and vacuum moulding products in high temperature furnaces, and also the materials of fiber spraying and fiber paper.

Classification temperature:

  • Ordinary ceramic fiber cotton 1100℃
  • Standard ceramic fiber cotton 1260℃
  • High pure ceramic fiber cotton 1260℃
  • High alumina ceramic fiber cotton 1360℃
  • Zirconium – containing ceramic fiber cotton 1430℃


  • Raw material of fiber paper and vacuum forming products
  • Raw material of fiber spray coating
  • Raw material of fiber castable and daub materials
  • Filling material of wall lining gap of heating device in high temperature furnace
  • Raw material of fiber textile products
  • Thermal insulation of Industrial furnace, boiler lining and back lining
  • Thermal insulation of steam engine, gas engine and other thermal equipment
  • Flexible thermal insulation material for high temperature pipes; High temperature spacer; High temperature filtration
  • Thermal insulation of thermal reactors
  • Fire protection of different kinds of industrial devices, thermal insulation and fire protection of electrical components
  • Thermal insulation material of incineration equipment
  • Raw materials for modules, folding blocks and veneer blocks
  • Thermal insulation of Investment casting


  • Low thermal conductivity, low thermal capacity
  • No corrosive substances
  • Excellent thermal insulation and sound absorption
  • Pure white color, size, easy to cut and install, construction convenience, saving man-hours
  • Without any binder contained; Long-term application in the neutral and oxidizing atmosphere
  • Low thermal capacity, low thermal conductivity, high refractoriness and high heat sensitivity
  • Excellent wind erosion resistance and mechanical shock resistance
  • Automatic production, stable density and performance

Physical and Chemical Indicators

  Item                      Brand name        

Ordinary type Standard type High pure
High alumina type Zirconium containing
Classification temperature (℃) 1100 1260 1260 1360 1430
Working temperature (℃) <1000 1050 1100 1260 1350
Color White Pure white Pure white Pure white Pure white
Fiber diameter(µm) Spraying 2-3 2-3 2-3 2-3 2-3
Spinning 3-4.5 3-4.5 3-4.5 3-4.5 3-4.5
Chemical composition(%) AL2O3 44 46 47-49 52-55 39-40
AL2O3+SiO2 96 97 99 99 /
AL2O3+SiO2+ZrO2 / / / / 99
ZrO2 / / / / 15-17
Fe2O3< 1.2 1 0.2 0.2 0.2
Na2O+K2O≤ 0.5 0.5 0.2 0.2 0.2
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