How Much Underfired?
Posted 22 May 2012 - 01:54 PM
Posted 22 May 2012 - 02:44 PM
You may still glaze these pieces-I have done so myself when under fired bisque. However, when I do a firing of under-fired bisqueware I usually slow my glaze firing at least to around 1100F. At the same time I try to slow down the last part of the firing to allow pinholes from gasses to smooth over. I would be concerned about the problem with the kiln firing to slowly to cause it to shut down. Have you used this program before, are there any elements that looked damaged? Is anything else about the kiln different.
Posted 22 May 2012 - 03:30 PM
You should be O.K. to glaze your pieces. Be aware that they may be more porous than usual and will soak up more glaze.Try to avoid getting your glaze on too thick.I would look at your firing bisque cycle and readjust it to fire more quickly.