Viscosity swings in the first slurry layer are a common cause of shell defects, and that is exactly the problem primary slurry mixers are built to solve. Laxminarayan Technologies makes these mixers to hold fine prime-coat slurry at an even, workable consistency through long production shifts. The Kolhapur-based manufacturer has served the investment casting industry since 1986, suppl... https://www.ic-machines.com/primary-slurry-mixers/