Grog does not always have the intended effect

Thursday 19th September 2013

These DFAC test disks (drying performance) show that minor additions of grog do not reduce the fired shrinkage of this medium fire stoneware much. Nor do they improve its drying performance. In this example, a 10% addition has not reduced shrinkage appreciably nor has it improved drying performance. The 20% addition has reduced the shrinkage and narrowed the crack, but it is still there and resembles the zero-grog version.

Pages that reference this post in the Digitalfire Reference Database:

Grog, DFAC Drying Factor, Drying Performance, Grog

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.