| 摘要 |
A metallic coating composition and vacuum metalization process for applying the coating composition on aluminum and steel substrates, for example on vehicle wheels, hub caps, bumpers and the like. The process is environmentally compatible and produces a decorative, wear-resistant chrome finish and comprises four stages: a cleaning or preparation stage, a base coat application stage, a two-step PVD stage, and a topcoat application stage. An organic epoxy, thermosetting powder base coat is applied to smooth the surface to a glass-like finish and to ensure adhesion of the metal coatings. A two part metal coating is applied via a PVD process, consisting of a Ni/Cr base and a Cr layer. A protective acrylic, thermosetting topcoat is applied to protect the metal coating layers.
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