Spectacular results can be achieved with these bright, intense, highly saturated glazes. Speedball Glazes can be used on earthenware clays that have been bisqued to Cone 04. They can then be fired to Cone 05 - 06.
All colors are lead-free and non-toxic. They are dinnerware safe when used and fired as directed.
see also ...
® Speedball is a registered trademark.