I have been really hating how all my window trim/door trim is shitty looking even trim pieces of roof of car are whitish looking. Has anyone ever painted there's and how did it turn out?

I had 97 cherokee that had faded fender flares on it and i taped off the body and got some krylon fusion paint and painted them, they turned out great and have been thinking trying it with my 99 EM1. but i also don't want to **** up anything like paint or trim..

 

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