Dealing with wollastonite lumps
Wollastonite is a major component of many of my glazes, but I hate the lumps that it forms, making sieving more difficult. Does anyone have any tips on dealing with wollastonite lumps?
Things I've tried:
1)Extensive mixing with paint mixer on electric drill - not much help at all with reducing lumps
2)Stick Blender - can work okay on thinner glazes, but too much cavitation with thicker glazes for it to be effective. (Most of the glazes I am making are brushing consistency.)
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@Piedmont Pottery @Callie Beller Diesel @Min
sometime way back I was working with some calcium silicate materials as part of a glaze research project. The problem was how to prevent the calcium silicates forming "concrete" from the glaze slurry sitting still for several days. The answer came from a Professor researching concrete; very small amounts of sugar are often added to the concrete mix when the pour is more than an hour from the mix station to the pour sight; using that data, and