I'm spending time this month at a community pottery room and the glazes are mostly a mess. No one is in charge of them. The good potters mostly bring their own, and the beginners just struggle to brush on from the buckets of various glazes. They have been mixed from dry but have sat for several years. I know to scrape up the settled part, sieve the whole thing, and add some epsom salt solution to cut down on the settling.
However, most people want to brush the glazes, and they dry instantly on the pots, making a mess. I have read about using gum solution and will order some, I think, but in a pinch, can I just add some glycerin? And how about some vinegar, also?? Do I have to learn how to measure specific gravity??
There are lots of bags of dry glazes in the cupboard. All of them are Laguna MS for Cone 5-6. They would like me to mix them up. There is Bentonite, so I will use that (although the colors of these glazes are not what I would choose!!). But to make them suitable for brushing, should I add gum along with the bentonite? I've read that the gum in powder form must be mixed with water and used as all or part of the water when mixing the glaze. (There are lots of other glaze ingredients stored there, so in the past someone knew how to use them!)
Ideally, I would think I should mix the glazes into two containers, one for brushing and one for dipping, with different additives. AND LABEL THEM AS SUCH!
Can you wonderful people send me some suggestions and maybe some links to clearly explained instructions?