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About Pres

  • Birthday 08/20/1949

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  • Location
    Central, PA
  • Interests
    Camping, kayaking, family, travel, Art in general. I have a small studio in my garage. Two electric kilns, two wheels, wedging table etc. I am primarily interested in cone 6 Ox. but like to see what is going on at all ranges. Read about ceramics voraciously and love the feel of the clay and throwing. Have to admit that my greatest joy is in the making, not the glazing. That said I do mix my own glazes, some of my own formulas, some borrowed. Retired from teaching art, in 2009 after 36 years, taught ceramics 34 of those years.

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  1. Can anyone advise/ I am getting blistering(pinholing) of an earthenware glaze particularly on the undersides of plates, sometimes under vases. I am soaking for 20 minutes getting a cone 04 down, though this glaze has also fired well at 05. Increasing the temperature does not cure the problem. We bisc fire(porcelain) to 1260C, so the body is pretty clean and hard. 

    1. Sputty
    2. JonathanChiswellJones


      Thanks Sputty- I will take some photos and give more details. It's an intermittent problem, but I have changed neither the glaze (made up in the pottery) nor the body(porcelain supplied to my recipe). 


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