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VermontSarah

Member Since 05 Jan 2012
Offline Last Active Aug 31 2013 10:24 PM
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Posts I've Made

In Topic: Deflocculating an overly flocculated glaze

12 June 2013 - 03:11 PM

Thanks, John. My batches are pretty large, and therefore old, and I think they have changed over time. I have studied the John Britt video over and over and no amount of Darvan seems to help. Do you ever check your specific gravity?

By the way, I spray everything too. I generally like to use glazes as thick as I can get them through the spray gun, because I single-fire and any extra water is hard on the raw pots. I'll keep trying and let you know.

Since you've used Steven Hill's glazes, let me ask you, do you have much experience with Hannah's Fake Blue Ash? I can rarely get it to fire blue. It over-crystalizes and I just get brown or bronze with maybe a little edge of cobalt. I've tried that glaze so many different ways I should have given up by now, but I'm stubborn.

I took Steven's workshop last May in Independence. Sadly, he is not available by email for these questions.

In Topic: Glaze basics -- Deflocculating/Flocculating

12 June 2013 - 01:32 PM

No Gherstley Borate. Thanks.

In Topic: Glaze basics -- Deflocculating/Flocculating

12 June 2013 - 09:37 AM

I need help. I am pretty sure I have deflocculated glazes because they don't settle, look like gel, don't dry on a test piece of bisque, and have a lot of lithium and strontium in them. I've tested the specifc gravity and it is quite low meaning I'm sure I've added too much water to try to un-gel them at some point. I'm leaving them open to evaporate out some water now. The glazes are Steven Hill Water Color Green and Water Color Blue. I also have the same problem with Wright's Water Blue which I think has some similar ingredients. The problem is, no amount of Darvan 7 seems to help. That stuff gets expensive too. I have some fairly large batches so I don't want to throw them out, and plus, if I start over I'm afraid I'll have the same problem over time. In the future I will make much small batches. Any suggestions? Thanks in advance.




oops. I think I meant to say I have over-flocculated glazes, not deflocculated glazes.

In Topic: Glaze basics -- Deflocculating/Flocculating

12 June 2013 - 09:29 AM

I need help. I am pretty sure I have deflocculated glazes because they don't settle, look like gel, don't dry on a test piece of bisque, and have a lot of lithium and strontium in them. I've tested the specifc gravity and it is quite low meaning I'm sure I've added too much water to try to un-gel them at some point. I'm leaving them open to evaporate out some water now. The glazes are Steven Hill Water Color Green and Water Color Blue. I also have the same problem with Wright's Water Blue which I think has some similar ingredients. The problem is, no amount of Darvan 7 seems to help. That stuff gets expensive too. I have some fairly large batches so I don't want to throw them out, and plus, if I start over I'm afraid I'll have the same problem over time. In the future I will make much small batches. Any suggestions? Thanks in advance.