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Discussion

Wreathing, a defect in slip cast ware, appears as

  • A.ridges on the cast surface from uneven filling
  • B.cracks radiating outward from the base of the piece
  • C.black specks scattered throughout the fired body
  • D.a glaze that has crazed badly after being fired

Answer: A

Turbulent or interrupted filling leaves marks where the slip surface paused against the mould. Filling steadily from a single point and avoiding air entrainment are the usual preventions. The defect shows most clearly on a glazed vertical surface.

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