Plastic vs metal

[AvsBest]

I'm paint correcting a challenger currently and I have no problems on the metal portions of the car (hood, doors, etc...) but on the plastic (front and rear bumper), I'm having a hard time removing defects. Anyone noticed that? I'm very familiar with correcting chrysler vehicles and I never came accross that.

 

I'm using a PC with the 4" microfiber pad and foam pad with paint correcting polish because of the tight areas on the front and rear bumpers.

[chops1sc]

They might have a flex additive that lets them assemble the plastic pieces and it might be curing a little bit harder than the other paint. Just a theory.

[rkj4243]

On my CTS coupe when I first bought it, and corrected it the first time, I saw a similar condition on the rear bumper area.

 

It took a few more passes with the orange microfiber pads and Correcting Polish to get the swirls and scratches out compared to the metal body panels. They did come out though, just more time and effort.

 

It is possible that Chris's theory with the flex additive in the paint on the "plastic panels" may have some truth and merit, which causes this situation.

[Ricky Bobby]

Don't get too ambitious on plastic bumpers - usually the paint is pretty thin. However they usually correct up pretty well.