Comparing two brands of calcium carbonate

Tuesday 18th March 2014

This GLFL test compares insight-live.com/glossary/112">the melt flow, at cone 6, of two glaze recipes containing the calcium carbonates (of which they make up 27%). Notice the amount of bubbles (due to the high LOI, or loss on ignition). The 3HX is flowing a little more. This could be because of a difference their proportions of dolomite and calcium carbonate minerals, the individual mineral purities or the particle size (or all three). Whatever the case, 3HX will make a glaze flow a slightly better.

Pages that reference this post in the Digitalfire Reference Library:

Calcium Carbonate, Glaze Bubbles, Material Substitution

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