Glaze Opacifier Property

Glaze opacity can be achieved using a number of different mechanisms (e.g. phase difference, crystallization, unmelted suspended particles, bubbles, matteness). Each mechanism or combination of mechanisms has advantages and disadvantages depending on the host glaze and process being used.

Mechanisms

Oxides	TiO2
Materials	Rutile
Materials	Talc
Materials	Tricalcium Phosphate
Materials	Magnesium Zirconium Silicate
Oxides	ZrO2
Materials	Alumina Hydrate
Materials	Arsenic Oxide
Materials	Barium Carbonate
Materials	Bone Ash
Oxides	CeO2
Oxides	Sb₂O₃
Oxides	As2O₃
Oxides	TiO2
Oxides	SnO2
Materials	Tin Oxide
Materials	Titanium Dioxide
Materials	Zinc Oxide
Materials	Zircon
Materials	Zircopax
Materials	Zircopax Plus
Materials	Calcium Carbonate
Oxides	ZnO

Links

Glossary	Opacifier Glaze opacity refers to the degree to which it is opaque. Opacifiers are powders added to transparent ceramic glazes to make them opaque.

By Tony Hansen
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