I have just decided to start making my own glazes and searched for a nice base recipe to start off and play with. However the recipe needs calcium borate fruit which is not available readily in the uk. I have no idea how to reformulate my recipe and what to use.
Can anyone suggest a good base glaze for me to experiment with as a start. I want a glaze with a firing range 1200-1220 that is glossy. Thanks in advance.