And the funny thing about Chrome, more of the thickness comes from nickel plating, not the chrome. A good quality chrome job spends an hour in the nickel tank, and only 2 minutes in the chrome tank. The average car bumper has 1 pound of nickel on it before chrome. Better quality if it is copper plated before nickel. Which is the only way Nickel/Chrome can be plated on Aluminum.On automobiles and bicycles, I believe chrome was originally used to ward off rust, as a preservative so to speak. If they didn't, or couldn’t paint it, they chromed it.
It wasn’t until a few decades later that it used as a purely decorative coating. Old chrome looks different than the gooey, “inches thick” show chrome seen today.
And yes, plastic isn’t chromed. That’s why you can brush it with a soft abrasive pad and make it look like stainless. Chrome would be much too hard.
My fender badge shows the brushed technique.
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