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  dip header click on images for details

The ceramic shell is made up of as many as twelve layers of investment (the greenish-yellow liquid slurry). After the layers dry, the shell is heated up in a large kiln to harden and, at the same time, melt out the wax. On the day of the pour, it is reheated to 1600 degrees before the molten bronze is poured into it. The thin shell withstands quite a beating, but can still produce details as delicate as a thumbprint.

investment slurry   chair being dipped
sprinkle drying
 
drying
  drying


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