The key to optimizing the UV performance and cosmetic appeal of the final product is to wet and disperse the Zinc Oxide particles, usually in the oil phase, prior to emulsification. This is a major step in the process, as it breaks apart large agglomerates which then may be stabilized by dispersants and/or the oil phase compatible with the coating.
No one understands working with Zinc Oxide better than the engineers at PerMix. As a result we make several different types of shearing mixers and shearing pumps that effectively and efficiently disperses the Zinc Oxide into the formulation with success. PerMix makes models for all production rates as well as units for the Lab / R&D.