Grog Firing

After days of crushing dried black porcelain slip into a powder, I placed it in a bisque firing at 1000 degrees. I then placed in it a test kiln at 1200, to become semi vitrified and therefore when added to my slip, It would lower the shrinkage as well as add texture and grades of colour. Although, this firing is lower that the final firing temperature of the piece as I want the body to fully vitrified together, making it stronger and durable.

 

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