Calcined Alumina

1KG ALUMINA CALCINED

Part #MAAC3

Regular price
CDN$7.61
Sale price
CDN$7.61
Regular price
Sold out
Unit price
per 
Shipping calculated at checkout.

Alumina (aluminum oxide) is essential in stabilizing glaze chemistry and preventing excessive glaze flow. Clay and feldspar are much cheaper sources of the oxide, however, so alumina is rarely used in glazes. Instead, it is mostly used as a refractory, typically mixed with kaolin to make wadding or kiln wash having high resistance to molten glaze or glass attack. For more information on alumina, see the Digitalfire.com Reference Library of ceramic materials.