White Fused Mullite

White Fused Mullite is fused from pure silica sand and very pure alumina. The specialy chosen raw materials allow us to have the highest purity in the industry. Our production method keeps out any kind of iron contamination. The brilliant white color and the high purity makes it the perfect raw material for the high-end ceramics and investment casting shell building.

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Typical chemical analysis:

Al2O3 SiO2 Fe2O3 TiO2 CaO Na2O
76% 23.5% 0.06% 0.02% 0.02% 0.06%

Grain size:

  • Refractory industry (WFM-RS):
    0-0.1mm; 0-0.5mm; 0-1mm; 1-3mm; 3-5mm;
  • Ceramic industry (WFM-CRS):
    0-0.1 mm; 325 F and other specially milled and classified grain compositions down to 5 µ range.


  • In 25 kg paper bags 1000 kg/ pallet
  • In 1000 kg BB-s