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What else have people used? what chemicals, primers, paint? It just seems paint will chip easily and show the chrome.
There isn't much you can do with the headlight rings, except make the surface good and rough to give the paint something to stick to. Blasting the bumper will make it plenty rough for paint to stick great. You could also use adhesion promoter to get the paint to stick a tiny bit better?
Even the factory painted front ends chip like hell. If u want to keep it looking good, add a 3m clear bra over it. Seems to work really well!
I posted about this on pt.net facebook page since this site doesn't get much action anymore. There was a good amount of info posted there.
I was lucky with my bumper because I was able to pressure wash all of the chrome off.
From what I see, people use a an adhesion promoter, sandable primer, primer sealer, base, and then clear. Some have even had good results with Duplicolor rattle cans....
painting a chrome bumper is pretty hard, you'll need to really rough up all the chrome if not remove it all, then sand smooth the metal then use an etching primer sand some more then primer then paint then clear.