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  1. Hi all, Second time posting here and I’m hoping you can help! Hopefully this is the right place to be for a troubleshooting question like this. Im currently working from a recipe for Val Cushing’s Cone 6 Porcelain Slip. grolleg: 15% tile 6: 15% Epk: 3% om4: 10% flint: 25% neph sy: 30% gerstley borate: 2% —————————— Sodium silicate: .0028% calgon: .0005% When I mixed this before, as now, I subbed the deflocculants with Darvan. I mixed it successfully then, but I’m currently have difficulty. I know that darvan generally subs
  2. Hello everyone, I am wondering if anybody can give me an advice on deflocculation? I am trying to adjust the viscosity of one gallon slip "Cone 06 Casting Slip - White" from a ca 50 seconds runtime, to ca 30 seconds. I have used dispersal "Darvan 7" in small increments and I am not adding water! For some reason, the slip does not seem to change significantly. Could there be an issue that I am not aware of? About how much would I roughly need to add to a gallon to get the running time down about 20 seconds under normal circumstances? Any advice would be so much appreciated! Thanks every
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