Scarva GZ2161 Low Expansion Tin Gloss Glaze From  £13.81

If you have been having difficulties finding a glaze for the Earthstone Black clays, then this is a solution. Most glazes I have tries fail completely on the Black clay but this works well, no bubbling up or crawling. It has a glossy surface and is a strong opaque white. It can also break nicely on the rims to reveal the dark clay beneath.

This on a black body clay is superb, top results unlike most glazes that seem to burn on a black clay this wa made for it.