Daniel Semler on tue 19 apr 05
got redder in oxidation refire.
Hi Kathy,
This sounds like striking-in. I had planned to try this in a raku kiln at some
point, but have not got around to it. Striking-in is used in glass where the
colour of the glass after the initial heating and cooling is not red. It is
then heated to a lower temperature and held for a while. As a result the copper
red colour appears. I've heard that this can be done with copper red glazes.
As to the surface change, healing the crazing I'm not sure.
Thanx
D
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Craig Martell on wed 20 apr 05
got redder in oxidation refire.
Daniel was saying:
>This sounds like striking-in. Striking-in is used in glass where the
>colour of the glass after the initial heating and cooling is not red. It is
>then heated to a lower temperature and held for a while. As a result the
>copper
>red colour appears. I've heard that this can be done with copper red glazes.
Hi:
As I recall, Kathy was talking about the glaze becoming redder after a
refire in the electric. What made the piece redder and brighter was some
extra oxidation, not achieved in the initial firing.
With respect to strike firing to produce a red, it is necessary to do this
in reduction so stiking wouldn't apply in this case.
regards, Craig Martell Hopewell, Oregon
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