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Re: [teacherartexchange] firing pre glazed tiles
From: Marvin Bartel (marvinpb_at_TeacherArtExchange)
Michael Hackett wrote:
Try one with a cone 05, 06, or 07 low fire glaze or overglaze. If it is high fired vitreous tile, fire it slowly at the early phase of firing to allow steam pressure out slowly enough (in case some water gets soaked into the tile body). Some types of tile will endure cone 6 or 8 high temp firing, but it depends on the clay they used to make the tile. In general, glazes on top of fired glazes are apt to go on too thinly, so experiment with ways to get the glaze on thick enough.
Marvin
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