CMC Gum is magic for multi-layering, even for raw Alberta Slip

Friday 23rd November 2018

The glaze on the left is 85% of a insight-live.com/glossary/137">calcine:raw Alberta Slip mix (40:60). It was on too thick so it cracked on drying (even if not too thick, if others are layered over it everything will flake off). The center piece has the same recipe but uses 85% pure raw Alberta Slip, yet it sports no cracks. It should be cracked much worse than #1. How is this possible? 1% added CMC Gum (via a gum solution) was added! This is magic, but there is more. It is double-layered! Plus very thick strokes of a commercial brushing glaze have been applied over that. Yet no cracks. CMC is the secret of dipping-glazes for multi-layering. The downside: More patience during dipping, they drip a lot and take much longer to dry.

Pages that reference this post in the Digitalfire Reference Library:

CMC Gum, Alberta Slip, Dipping Glaze, Crawling

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