Alumina

Alumina is used for glaze and frit applications. Al₂O₃ is the main glass stabiliser and opacifier.

Al₂O₃ is capable of combining with both basic oxides and silica. It hardens the glaze surface.

Used for tiles porcelain applications, Alumina allows a white firing colour (for unglazed/super white body) that can reduce the use of whitening agents or zircon silicate.