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Porcelain Crucibles

To prevent thermal stress cracks on porcelain ware,
CoorsTek strongly recommends a heating/cooling rate not to
exceed 200° C/hour.

Refractory Qualities
Fusion point: 1670° C
Softening point: 1400° C
Limit of use, unglazed: 1400° C
Limit of use, glazed: 1150° C
Limit of use, evacuated: 1300° C