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State whether the following is true or false.
A plaster mould can be used continuously without any drying period.

  • A.True only at large scales
  • B.False only at small scales
  • C.True
  • D.False

Answer: D

Once the plaster approaches saturation its capillary suction falls away and casting slows markedly. Production potteries hold several sets of moulds so that some are drying while others are in use. Mould stock rather than mould quality often limits output.

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