How to clean up around moldings?

[Amanda4461]

I finally got around to washing and waxing my 2010 Tahoe 4wd. While I take care of the mechanicals, I have sorely neglected the paint and trim. After two washes, I decided to apply some Mother's Paste Wax. It turned out better than expected, and I even did the roof for the first time since it was a year old. Unfortunately, the lower trim moldings on the 4 doors seem to have a small layer of "black sludge" that rides along the bottom of the trim moldings and doesn't seem to be easily removed. I assume it is Texas Asphalt Road Rash
I have tried washing, using wheel degreaser, WD-40 and even went so far as to break out my rifle bore cleaner, good old Hoppe's #9, to no effect. Any idea of an effective way to remove what looks like small particles of grit from below the trim moldings on my Black LTZ?
Thanks!

 

[Kenny D]

If WD 40 and Hoppe's #9 didn't get it, it probably will not come off without abrasives.

 

[Drok]

Also agree with above but... try a claybar with light soapy water, other then those options you can always just take the side mouldings off

 

[Amanda4461]

FOSSCORE gave me a tip that worked out well. I used some WD-40 on a Mr. Clean Magic Eraser. Worked with enough elbow-grease

 

[Drok]

Yea thatd work too just be careful with the erasers they can also ruin plastics.

Glad it came off.