Refractories 
1.Description：
In order to further enhance the anti-chemical erosion, ZrO2 is introduced into the Al2O3-SiO2 system to improve the structure of mullite, which is generally obtained by electrofusion.
2.Characteristic：
It characterized with high resistance to chemical attack.
3.Application:
In the casting industry, it is used as filler for coatings to be used under severe chemical attack conditions.
4.Specification:
Items | Unit | Guarantee Value | Typical Value | ||
Chemical Composition | Al2O3 | % | 41.00-46.00 | 44.56 | |
ZrO2 | % | 35.00-39.00 | 36.31 | ||
SiO2 | % | 16.50-20.00 | 17.13 | ||
Fe2O3 | % | 0.20max | 0.09 | ||
Bulk Density | g/cm3 | 3.6min | |||
Apparent Porosity | % | 3.00max | |||
Phase | 3Al2O3.2SiO2 | % | 50-55 | ||
Indined ZrSiO4 | % | 30-33 | |||
Corundum | % | 5.00max | |||
Glass | % | 5.00max | |||