Scarva Nano Colours NK21 Transparent Stoneware Crackle Glaze Glaze From  £16.15

Really lovely glaze that looks beautiful over slips...interracts badly with Amaco underglazes and getting a bubbly effect (looks like the surface has boilded) where glaze is applied over. Glaze tends to hardpan and is a nightmare to get mixed once settled. Needed to add 1g/1kg of Epsom salts or 0.5g /1kg Calcium chloride to remedy the mixture. Be great of Scarva could get these issues sorted then would be a fab all-rounder.