Ron Roy
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Posts posted by Ron Roy
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I heard that the American Talc Company (Texas) sold out because there were hundreds of their workers suing over asbestos type disease. Some talcs have those needle like fibers that cause lung disease. Be aware that every talc has a different analysis and clays and glazes have to be adjusted to get the same results - RR
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Hi Dick,
I don't have any G200 except for what is left that I bought before it went downhill, My Materials are almost gone - I'm not making pots anymore. Thanks for the chart Min. I still can't believe Pacer has not owned up to publishing false analysis - RR
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Hi Dick and all,
I would be willing to do the research and write another article if I can gather enough samples of the latest Custer. Anyone willing to send me some just get in touch. My best advice is to switch to another spar - g200 EU looks like the best alternative for a potash spar.
Cone 10 bodies were affected when the low P2O3 Custer started shipping around 2000. That resulted in cristobalite production and shivering problems and underfiring in some glazes.
Ron Roy ronroy@ca.inter.net
- Pyewackette and Hulk
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Custer feldspar... again... new chemistry 2021 data
in Clay and Glaze Chemistry
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Hi Dick,
Sorry for the long delay responding to your offer. I've been very busy fixing glazes due to high cost of GB, new talc and EPK shortage.
Still don't understand how to send direct to you. My email address is ronroy@ca.inter.net I welcome inquiries about clay and glaze problems.
Any one who has fairly recent samples of custer spar please contact me directly.
My best advice on the subject would be - don't use it. The cost of feldspar is small compared to losing work. G200 EU has a good reputation.
Laguna has said they will not import Haviar spar again. Does anyone have any idea if they are activley looking for potash spar?
RR