High Bridge Pottery

not sure how bad your bubbles are, but I sometimes squirt diluted alcohol which breaks the surface tension of the bubbles...at least the ones floating on top. I learning this from plaster mixing with Richard Notkin who learned it from professional mold makers. It does not have any effect on the glazes.

Thanks for the tip Marcia but this isn't to do with application issues. Will try it next time I am making plaster moulds My problem is with the LOI leaving bubbles in my fired glaze.

when i sub wollastonite for whiting/silica the glazes flux more when the formulas are balanced. i need to slightly undersupply the calcium part of the original formula.

That's what I was trying with the hold at 900c. Didn't seem to make much difference. Going to put a ball of glaze in my bisque and see if it has already started melting.

Can you get wollastonite where you live? Since whiting has approx 45% loi lots of gassing out that has caused problems with some of my glazes before i rejigged recipes. doesn't always work but sometimes it did the trick.

If I can't solve the problem I will have to buy some wollastonite. Just been trying to use what I have in the stores.

It was overcast here, we weren't able to see ANYTHING.

Oh no it was such a good experience. Made it seem like much more of a rock in the sky without it being so bright. A lot less red in real life than the close up photos seem to show.