... tires), lubricants, paints, ointments, adhesives, sealants, pigments, foods (source of Zn nutrient), batteries, ferrites, fire retardants, ... , rubber, lubricants, paints, ointments, adhesive, sealants, pigments, foods, batteries, ferrites, fire retardants, etc.Rubber manufactureAbout 50% of ... foods also include trace amounts of ZnO even if it is not intended as a nutrient.CoatingsPaints containing ...