I attended a seminar on restoring antique cars and one of the lecturers
owned a chrome shop that specialized in high-end work. According to him,
the difference in 'show' chrome was the amount of prep work done to the base
metal, not the actual chrome step.
Show chrome had the base metal stripped and polished (a lot of polishing in
pre steps for show chrome). The part was then copper plated and polished
again followed by nickel plating. The final step was the chrome plating
that was only a few microns thick.
He said the difference in a high quality finish was the amount of surface
preparation that preceded the chroming step, not after the part has chrome
on it.
Gil Fuqua
Nashville
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