Raw materials of ceramic glazes generally include silica, which will be the main glass former. Various metal oxides, such as sodium, potassium, and calcium, act as flux and therefore lower the melting temperature. Alumina, often derived from clay, stiffens the molten glaze to prevent it from running off the piece.

What are the 4 main ingredients in glaze?

These components are silica, alumina, flux, colorants and modifiers. Even though all glazes are made up of the same components, there is a vast range of colors and types to choose from. The common ingredients that are in glaze colors are copper oxide, copper carbonate, cobalt oxide and iron oxide.

What are the 3 main components of glaze?

Ceramic glazes consist of three main components: glass formers, fluxes, and refractories.