Ivor and Olive Lewis on fri 6 oct 06
Dear Matt MacIntire,
If your clay or you glaze contain any iron oxide this will happen when =
the temperature (note temp not cone value) pushes towards or exceeds =
1300 deg Celsius. Iron oxide decomposes at these temperatures and =
evolves Oxygen. This is the basis for oxidation fired Oil Spot Tenmoku =
glazes.
Less that one percent iron oxide, red or black will make this happen.
Best regards,
Ivor Lewis.
Redhill,
South Australia.
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