I haven't fired anything in almost 15 years. I have a lot of old dried out glazes in jars. Can these be reconstituted? I hate to waste it, also it's very expensive.
I am planing to add water to mine and see what happens. I also have not fired in years and I have boxes of Duncan glazes. If nothing else we can add the dried glaze to new glazes and use them like crystals. Have fun getting back into firing. I am too.
Reviving an old post just for fun.
A small amount of Epsom salts (1/4 teaspoon) dissolved in hot water, then added to the mix. Id have to google the link I found it in for exact ratio.
Stir, let sit, strain through a sieve, repeat. It works!
(Just don't use too much magnesium or it can cause glazes to over run.)
My pottery teacher says glazes never go bad, just add water. I see the original question was asked 3-1/2 years ago, they're probably dryer than ever.