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problems with running glaze

updated sat 30 sep 06

 

RJ Shulenburg on fri 29 sep 06


Can this glaze be saved? I have previously fired it in reduction and
oxidation in the cone 9 to 10 range with no problems but my last few firings
it has started to run badly. Any suggestions?

Dolomite 5.9
Gillespie Borate 13.6
Whiting 8.2
Zinc Oxide 3.9
Minspar 200 46.1
EPK 2.7
Silica 19.7
Add Copper carbonate 3.5
Cobalt oxide .5

Ronda Shulenburg
Virginia Beach, VA