A heavily grogged casting body still casts with a smooth surface!

Wednesday 2nd October 2019

20% 20-40 mesh grog was added to a Pyrax/Kaolin thermal shock body. While the insides of the pieces have a very rough surface, the outsides are smooth! Grogged casting slips have issues with the particle settling during storage and casting, however in this body the grog suspends long enough for a 15 minute casting time (and it easily mixes back in after storage). Pieces can be put into the kiln wet-out-of-the-mold and fast-heated to 250F and they do not crack.

Pages that reference this post in the Digitalfire Reference Library:

Slip Casting

This post is one of thousands found in the Digitalfire Reference Database. Most are part of a timeline maintained by Tony Hansen. You can search that timeline on the home page of digitalfire.com.