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A casting slip that is too thick, or flocculated, tends to produce

  • A.a rough cast surface and slow casting
  • B.an unusually smooth and rapid cast
  • C.no cast layer of any kind at all
  • D.a cast that is far too thin to handle

Answer: A

Flocculated particles trap water in an open structure, so the cast is porous and the surface poor. Correcting it means adjusting the deflocculant rather than adding more water. Diagnosing the cause matters more than treating the symptom here.

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