Zinc oxide is a white powder that is insoluble in water, with antioxidant and antibacterial properties. Its main uses are as an additive in numerous materials and products including plastics, ceramics, glass, cement, rubber (and other polymers), lubricants, paints, ointments, adhesives, sealants, paper, foods, batteries, ferrites, fire retardants, and first-aid tapes and creams. It is used as a pigment in paints, rubber, plastic, cosmetics, foods, and many other products.