A body containing excessive non-plastics having a high bentonite addition for plasticity


Thursday 26th February 2015

This can happen during tooling (I am making a crucible here). While the plasticity is sufficient for throwing, at lower water contents it drops off quickly. This is a mix of 5% bentonite, 10% ball clay and 85% calcined alumina. For better trimming some refractory capability needs to be sacrificed for more ball clay (perhaps 20%).

Pages that reference this post in the Digitalfire Reference Database:

Bentonite, Veegum


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