How do I determine the correct firing temperatures for my ceramic furnace?

Refer to our recommended firing parameters for ZrPro® Ceram as an approximation for all furnaces. Firstly, it must be checked that the furnace corresponds to factory calibration settings. We recommend preparing and firing samples according to our parameters, then adjusting as necessary. Position the sample on the firing tray at the same height and distance from edges of the tray as usually done with a ceramic crown.

If the edges of the sample are rounded, then it means the firing temperature was too high. If the surface is dull and has a milky-like core, the firing temperature is too low. When the firing temperature is suitable, the fired ceramic has a homogeneous surface with a natural glaze effect, and with edges that have sharp contours.