Feldspars, the primary high temperature flux, melt less than you think.

Tuesday 21st January 2014

Our melt fluidity tester is being used to compare cone 8 melt fluidities of Custer, G-200 and i-Minerals high soda and high potassium insight-live.com/material/310">feldspars. Notice how little the pure materials are moving (bottom), even though they are fired to cone 11. In addition, the sodium feldspars move better than the potassium ones. But feldspars do their real fluxing work when they can interact with other materials. As a demonstration of that, note how well they flow with only 10% frit added (top), even though fired three cones lower.

Pages that reference this post in the Digitalfire Reference Library:

Custer Feldspar, Feldspar, Soda Feldspar, MC Na-200 Feldspar, MC 200K Feldspar, Low Budget Testing of Ceramic Glazes, A Low Cost Tester of Glaze Melt Fluidity, Downloadable 3D model for melt flow tester block mold, Feldspar Glazes

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.