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Posts posted by terrim8

  1. fantastic article Marcia!

    I got a hold of Arne Ase's book from the university here and saw the endless varieties of colour you can obtain from the soluble salts plus the high fire capability with porcelain  but your work is interesting to see how to use it at lower temperatures than his work. You must have a gas kiln to put the saggars in right?

    I'm down to a small electric and an outdoor raku kiln  -  so I probably can't try it now - dam!


  2. On 4/24/2020 at 12:18 PM, Min said:

    I really like this claybody from Julia Galloway. Cone 6, very low absorbtion of less than 1% (with my firing methods). Handles really well on the wheel, not too fussy with attachments.

    Cone 6 smooth - dirty porcelain type claybody

     EPK Kaolin 35
    Tile 6 Kaolin 15
    Nepheline Syenite 23
    Flint 22
    XX Sagger Ball Clay 5
    White Bentonite 3 


    (I'm going to go ahead and change the title of your thread to better reflect your question)

    Looks nice. Wonder if I can sub OM4 for XX Sagger as that is what's in my cupboard.

  3. I agree with you that its best to wait for longer. I am wary of a second wave and I see people out on walks not caring how close they get to others. When we walk, we try to cut cross country in parks to keep our distance. The snow is finally starting to let up here and we can get some fresh air now and its been therapeutic to walk as we have been in mourning for my mother's passing.

    My husband is recovering from a heart attack from last fall and he still has problems and is high risk. I hope people can care enough to do the right thing and take it slowly and carefully to try to get back to normal - don't think I can handle two funerals this year.  and pray for a successful , rapid development  and deployment of a vaccine.






    On 1/18/2020 at 11:28 AM, Hulk said:

    Spend time touring schools, look, listen, with particular attention to students that have a few years in.

    Definitely go and see for yourself!!! Find out about air bnb's near Alfred and hop on a plane to go see - maybe line up some prof's to talk to but not admissions until you're ready :)

    Then go south to Berkeley and check out their art department & maybe join a studio down there for a bit to meet other potters. Did you read Ceramics Monthly this month? Head over to Heath and talk to others about what happens in industry- line up someone to talk to first. The CM article has names & I'd bet someone from that article would have advice.

    Do some research and line up other places to check out - its really important for you now. If you have financial help there's Stoke on Trent in Britain for apprenticeships, etc. So many options and choices!!!

    This expense is an investment in your future - you're so young - sigh - wish I was there again.....


  5. 2 hours ago, Callie Beller Diesel said:

    @terrim8 didn’t you take that plaster workshop at Medalta? How did they deal with the lathe? What was the dust like?

    We made the tube shaped plaster forms right on to the lathe chuck. Then while the plaster was just set enough to handle, we put them on the lathe and started turning the shape, saving enough at the end to make a spare too. No dust, just crumbs of wettish plaster all over the place and the tools - lots of fun to clean up. There is a separate plaster working area where the lathe is- its kept away from the rest of the pottery - remember?

    Wish I had that lathe!!!

  6. No, the point I am trying to make its that it won't take long for people to find the desired commodity in North America if the value is significant enough to encourage exploration. That is why I used the DeBeer's example. This generally runs into an oversupply situation and then the price of the commodity drops. But we can find and develop things here if needed. Btw, DeBeer's Victor Mine in northern Ontario is finished already and so is Snap Lake in the NWT.  Short expensive mine life.

    Of course none of this can change company behavior or foreign government actions with respect to child labour or lax environmental laws. 

    And as potters, you're absolutely right- we don't affect the commodity markets - we're too small.  We can decide to not use a product if we know it is produced unethically but that's about it .

    The problem though is labeling. How do you know where your cobalt came from? Or all those diamonds I need to hurry up and buy for Christmas!

    I'm adding something else here about labeling - I was buying toothpaste the other day and tried to find out where it was made. I went thru the whole rack and 99% just said imported and wouldn't say from where. I finally found one that said "made in the USA" and I bought that one. I don't want polluted toothpaste!


  7. 20 hours ago, liambesaw said:

    There is no way to beat china when it comes to mining and refining these elements,

    They used to say that about DeBeers & South Africa about diamonds. Then a  South African "defector" by the name of Chuck Fipke came along & spilled the beans to the geological community about specific pathfinder minerals in diamond exploration.  It had been a company secret.


  8. On 9/9/2019 at 4:27 PM, liambesaw said:

    Rare earth refining is where you would draw concern I think.  I think all the lanthanides are mined together and separated via chemical process.  Since China is the dominant (only) producer of rare earth elements I'm sure they do it all safely and ethically. 

    Sarcasm ?  This is the same country just caught releasing fluorocarbons into the atmosphere again - who needs an ozone layer, right?

    The US military is working with companies that mine rare earth deposits . There's a new processing plant in Colorado, with the ore mined in Texas. Guess its a strategic commodity now!

    The price of cobalt indicates that the supply is being met. One of the major producers in the DRC has been shut down for 6 months and the price of cobalt has still dropped. It's too unstable to operate there. Future battery production may not use cobalt.

    Cadmium is just bad news https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5596182/




  9. That's probably OK that few are heading into pottery as a career. To me that means that the desire to do that work is strong despite the current economic headwinds and that is what is needed to prosper. They've really decided that it's their life's work.

    The potters I know, in our area, go to innumerable markets and sales - I get tired just hearing about it. I think I'm ready to just putter with pottery and enjoy other's work! :)



  10. I used to do this a lot in my outdoor gas kiln. It is correct to use a glaze with a significant quantity of clay in the recipe. Just go by the book- slow warm up - (its called candling) even overnight then start the  regular firing in the morning. I used recipes specifically for once firing - some even went on as a slip right after trimming.  Dry things really well. Everything has to shrink and fit together at the same rate.

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