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07-01-2026LAST POST
The grill (M3) has black plastic and I wonder if this can be polished successfully. Even new, the plastic has a lot swirl marks.

Some detailers state these plastics are very difficult (or impossible) to correct.
seamaster222 wrote
The grill (M3) has black plastic and I wonder if this can be polished successfully. Even new, the plastic has a lot swirl marks.

Some detailers state these plastics are very difficult (or impossible) to correct.
That thing is so sensitive that even looking at it will create swirl marks. I’m having mine PPFed to prevent swirls lol.
N1rve wrote
That thing is so sensitive that even looking at it will create swirl marks. I’m having mine PPFed to prevent swirls lol.
Are you polishing before PPF?
seamaster222 wrote
Are you polishing before PPF?
Nope. Just going to apply PPF straight over it lol. The PPF will mask it.
N1rve wrote
That thing is so sensitive that even looking at it will create swirl marks. I’m having mine PPFed to prevent swirls lol.
This worked for me. I got STEK Dynoshield + Car pro Quartz Professional on my front bumper & most of the plastic trim on my 240. Bugs and shit wipe right off easily and there are NO swirls at all. This is the way.

When I brought the car in there were some minor swirls but they were able to polish them out. He stated that the plastic on these new Beemers was a challenge to polish but they can do it. I hate the damned plastic, LOL. :)