Metalizing is also called UV coating, it is a process of plating a thin layer of metal or alloy on the glass bottle’s surface, so as to play a protective role, improves wear resistance, conductivity, reflection, corrosion resistance and enhance beauty.Interestingly, custom perfume bottles can be metalized with materials like gold, silver, copper, aluminum, nickel, to give the bottle’s surface an iridescence or a more creative coating effect.