Keeping fine ceramic slurry moving at a controlled speed is what separates a clean prime coat from a patchy one. Laxminarayan Technologies makes primary slurry mixers for this exact stage of the investment casting process, so foundries can maintain even viscosity across a full shift and coat wax patterns reliably. The company has manufactured foundry machinery, chemicals and refractor... https://www.ic-machines.com/primary-slurry-mixers/