A global cosmetic company approached ROSS with the goal of expanding their gel manufacturing capabilities. Our team at the Ross Test & Development Center conducted a pilot demonstration to evaluate an appropriate batching and mixing procedure on a 100-gallon VersaMix Multi-Shaft Mixer.
Deionized water, phenoxyethanol, EDTA, ultraviolet absorber, colorant and other minor ingredients were first charged into the mix vessel. The mixer was closed and Carbopol powder was added through a port on the cover as the High Speed Disperser ran at 900 rpm. This speed was gradually increased to prevent powders from floating on the surface.