metallise

Verb

metallize (third-person singular simple present metallizes, present participle metallizing, simple past and past participle metallized)

1. To coat, treat or impregnate a non-metallic object with metal.
   • He takes the prepared charcoal used by artists, brings it to a white heat, and suddenly plunges it in a bath of mercury, of which the globules instantly penetrate the pores of charcoal, and may be said to metallize it.1879, Th Du Moncel, The Telephone, the Microphone and the Phonograph, Harper, page 166