It is indispensable in combination glaze techniques.  When used in combination work, Overdrift's strong white opacity partially modifies the color tint of the base glaze.  It renders a cascade of white floats when applied over or under a glaze.  It is also excellent on red clay.  Results are dependent upon the method and quality application and the firing.  Consistency should be like thick cream.  Recommended firing range is Cone 06-05, although it may be fired as high as Cone 6.   AP NonToxic in liquid form.   Not dinnerware safe.