Tonneau leaves sticky residue

[bluwatergal]

Hi everyone. I just purchased a 2014 Livin Lite Quicksilver Coleman 10. It's in very good shape except the underside of the tonneau cover has left a sticky resident on the bottoms of the bunks. I've tried washing the bunk bottoms with a mild detergent and Simple Green -- neither has worked. Any suggestions? I've ordered a new Tonneau, which will fix the problem going forward, but I'd like to get the gunk cleaned up.  Thanks for you help.

[Wrathful]

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