Our base glazes plus opacifiers on a dark burning body at cone 6

Tuesday 4th June 2019

The body is Plainsman M390. These are commonly-used insight-live.com/glossary/262">base glazes. The top one is an MgO matte, next down is a calcium matte. They react very differently to these additions. Notice also the difference when titanium dioxide is applied thickly. Tin oxide fires whiter than zircon (e.g. Zircopax). Each opacifier has issues. Tin is expensive. Titanium is difficult to mix into the slurry (screening required), not as white or opaque, variations in thickness produce more difference in results and it can turn blue. Zircon is more likely to cutlery mark, twice as much is required and it amplifies the color of any iron present.

Pages that reference this post in the Digitalfire Reference Library:

G1214Z1 - Cone 6 Silky Matte, G2934Y - Cone 6 Magnesia Matte Low LOI Version, G2934 - Matte Glaze Base for Cone 6, A M390-compatible cone 6 red-burning casting body, Opacifier

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.