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Ron Roy

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  1. Ron Roy
    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
  2.    Pyewackette reacted to a post in a topic: Custer feldspar... again... new chemistry 2021 data
  3. Ron Roy

    Hi Dick,

     

    Sorry about the delay answering - busy time for me.

     

    First - a correction "Cone 10 bodies were affected when the low P2O3 Custer started shipping around 2000"  should read K2O not P2O3. How could that change have happened?

    I don't have any custer - in fact I'm retiring from making pots. Just can't physically handle the work anymore.  Still fixing glazes though.

    I would still like to do the reaserch on the current Custer.

    If the KNaO is back up to 14% as opposed to 10% for the low K2O I assume any glazes that would run off must have a lot of custer? Or does it have low alumina or both?

     

    RR

    1. Dick White

      Dick White

      Ron, I've been away for a few days for our Thanksgiving holiday and not able to respond. Based on the latest info that Pacer is shut down for an indeterminate time, I think we should wait to see the condition of whatever they come up with when they reopen rather than analyze old product that is not currently available.

  4.    Roberta12 reacted to a post in a topic: Talc shortage? New Talc - Cim Talc and Fabi Talc
  5.    Hulk reacted to a post in a topic: Talc shortage? New Talc - Cim Talc and Fabi Talc
  6. Ron Roy
    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
  7. Ron Roy
    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
  8.    Hulk reacted to a post in a topic: Custer feldspar... again... new chemistry 2021 data
  9. Ron Roy
    Ron Roy joined the community
  10. Ron Roy
    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
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