GF-3 clays, fully refined clay blends, are specifically designed for demanding glaze and engobe applications. 

These products offer outstanding moisture retention properties, excellent high plasticity,clean fired colour and stable rheology for high effectiveness in engobe applications.All OPALBLEND grades are mined and processed under strict internal quality programs. 

The result isconsistent mineralogy, chemical and physical properties that ensure predictable   results   with   today'sdemanding ceramic processing techniques.