LauraLucht
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LauraLucht reacted to Russ in Used old shelf primer and this happened, can you help?
YES. Id try firing before i went to all the trouble of sanding and scraping.
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LauraLucht reacted to Piedmont Pottery in Used old shelf primer and this happened, can you help?
It looks to me like you had enough organic materials in the kiln wash to create a reducing environment in the kiln and you got a lot of carbon going into the surface of everything. If that is correct, refiring with plenty of air available, e.g., peeps open or lid propped open just a bit, should burn off the trapped carbon. Fire it up to your normal working temperature.
