It doesn’t take a ceramic engineer to make a good quality casting slip, but slip mixing is a chemical process that is affected by even the slightest changes in temperature, humidity and the chlorine and chemicals that are added to water supplies. Although there are those who will say they have been using the same Dixie Cup for the last ten years to measure Sodium Silicate, and a nail on a wooden barrel for a water marker, this approach leaves far too much room for error.Īccurate measurements of Viscosity and Specific Gravity are important. Making good slip is the first and most vital step in a successful slip casting operation.
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