Vacuum metallization
• is a process where a metallic coating material is placed in a vacuum chamber with the workpiece to be coated.
• The material that is being applied is then heated until it starts to evaporate; this vaporized metal condenses on the product or workpiece as a thin metallic film.
• As this is happening, the part is being rotated for uniformity of the coat.
• Thin layers of paint can then be applied to produce other colors. Once complete, a clear sealer is usually added to prevent flaking.