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Showing results for tags 'firing temp'.
Hi there. I have bought this glaze : https://www.potterycrafts.co.uk/Products/potterycrafts-stoneware-glazes/P2813 (firing range 1180 - 1250 degrees C). I have applied it to stoneware clay that I bisque fired at: I have been doing this for bisque: Section 1 - room -> 600 at 90 degree per hour Section 2: 600 - 1000 at 200 per hour Could anyone reccomend a firing schedule in degrees celcius per hour for me? I use an electric kiln. Will I need a soak or anything? Thank you, Lara
Newbie here. I started in November and have fired my kiln four times (2 bisque, two glaze) with pleasing results. I use Amaco Stoneware Clay 38. Typically I fire it to cone 7 (I was shooting for cone 6, but my kiln fires hot). Recently I found this info connected to the clay I buy: "Bisque fire to Cone 04 (1971°F, 1077°C). The firing range is Cone 5–10 (2205°–2381°F), and the recommended glaze firing is Cone 10 (2381°F). At Cone 5 (2205°F), shrinkage is 13% and absorption is 7%. At Cone 10 (2381°F), shrinkage is 15%, absorption is 1.4%, and the clay fires white in oxidation and gray in reduction, both delicately peppered with darker gray spots." So my question is this: What does "recommended" mean to the fired pieces I've already made? Should I change my firing range to high, rather than mid level? What about the cone 6 glazes I've been using? If I begin to fire at cone 10, should I still use the Amaco cone 6 glazes? What does cone 6 vs cone 10 mean in terms of glaze usage? ...and is it even necessary to change courses? TIA