Zirconia Composite Silicon Micro-Powder has the properties of silica powder, and at the same tine contains zirconia content. Could be choosed as one of the best additive to high property castables. Specification: Al2O3 90%; 92% min
ZrO2 5-6%
Al2O3 0.5% max
Fe2O3 0.2% max
TiO2 ----
Size: 0-0.001mm