Yes, we all know that it is mostly plastic. Now that chrome is making a comeback of sorts, I wonder if the new plastic/chrome is any better than the old stuff that would dull after a few years. I certainly hope so. :-\
I found the front bumper chrome does do well with a "golf Ball Sized Rock" impact at 70 MPH.
It didn't Bust it but put a "small Chip" in it. Only I seem to notice it unless someone else looks real close
I am glad it hit that instead of paint on the front of the car!
Actually there is chrome on your plastic and it is plated on using a process similar to the one used to chrome plate steel bumpers and trim. What you really see is nickel with a very thin layer of chrome. The chrome keeps the nickel looking shinny by preventing it from corroding/oxidizing. When you see the latest Explorers the big chrome bumpers/facias are all plastic plated. Same with the large chrome front bumper ends on the new GM 2500 pickups.