iandol on mon 13 mar 00
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This idea intrigues me, if for no other reason than to question the need to
refire to the original cone value. For most glazes, I think going up to =
about
eight hundred Celsius should do the trick.
Correct me if I=92m wrong in thinking this way, but I understood that =
glazes,
being glass, always had lower melting or softening temperatures than any of =
the
original compounds used in recipes and that this was especially true of =
those
which contained Sodium, Potassium or Boron through incorporating one of the
feldspars or Gersley Borate
So, if it is only a glaze defect which has to be corrected and is not a =
problem
of an immature body, why take the work back up to cone 8 plus?
It seems to me that this is a matter of convenience because we have space in=
the
next firing and the decision to fire so high is not based on technical
knowledge.
Ivor Lewis. Throwing ten year old porcelain. How sweet it is.
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