Ron Roy on sun 31 dec 06
I recieved this request today and I don't have an answer for Rachel -
perhaps some of you have some experience here?
I have sent her Arnolds email address - if anyone else has some information
please send it to her directly - she does not read ClayArt.
"Rachel Leigh-Hamilton"
Thanks - RR
>Hi Ron my name is Rachel and I have got a problem with my very large
>oval Olympic kiln I think its the largest kiln they make not sure if
>this will be relevant or not just wanted you to get the size of the
>possible problem which is.........
>
>
>I make ceramic torso's life size and have always used a bronze glaze for
>them, I also dabble in Egyptian paste containing Copper Carb and Soda
>Ash the egyptian paste I have always fired in my test Kiln with out any
>problems arising or any adverse effects of other glazed bodies.
>
>I decided to make a torso in Egyptian paste and made 2 life size casts
>and fired them in my Olympic electric Kiln all went well until I needed
>to fire some bronze torso's some weeks later and the bronze glaze came
>out near black with a glitter effect, shocked at the results I did fire
>another 2 torso and got the same black results I did test the Bronze
>glaze first in the test kiln and all was well
>
>I presume now that the kiln is contaminated as the Egyptian paste was so
>large not sure if it was the copper or the soda ash my question is how
>do (if I can) counteract the damage or will it diminish with time or
>maybe take the kiln to stoneware and hopefully burning off the damage or
>is it new elements, if I replace the elements will the bricks/shelves
>etc still be contaminated.
>
>Nobody seems to know a solution, I have researched your name through
>various forums and thought if anyone would know the answer then you
>could well be the man.
>
>Many thanks for your help
>
>Kind Regards,
>
>Rachel.
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
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