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