I used Krylon fusion on plastic that's what they make it for I used it on my pc too And I used the rustoleum auto plastic black paint I've never tried the duplicolor I'll have to try some
I mean if you're color matching something it's the easiest route there is. DupliColor makes quality paint as well, but if you're painting something that's not PTM then Krylon or Rust O Leum is damn good paint for the money.
I just scuffed mine with a scotch brite pad also and sprayed it with DSG Duplicolor color match when I did my grill.
jo make sure u clear it , if u dont it will get black and real dirty and wont come off ..... first time i did mine i didnt clear it and it got black and i redone it and cleared it and looks good now
I didn't clear mine and it stayed clean and held up well. I only had a few hours when I painted it so there was no time to clear, and I wasn't going to go driving around without a grill.