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Spectrum's exciting line of low fire (cone 06/04) glazes that give the appearance of a stoneware finish.
We have included 900 Clear in this line which can be used, for example, to line the inside of pots. Please do not use our 900 series glazes on the same piece with 700 series glazes. Due to significantly different expansion rates this combination can cause pots to crack.
In addition to the chip samples in our color chart which show the result of applying 3 coats of each glaze on white bisque and firing to cone 05, please also experiment with overlapping low-stone glazes.
All of these glazes are lead-free and dinnerware safe when fired correctly. 47 of the colors are AP non-toxic, but 16 of the colors (901,902,903,912,913,932,934,941,945,946,947,949,954,956,959,960) have Health Labels for use in the unfired state. This is due to the presence of copper oxide and/or nickel oxide exceeding the prescribed limits.