huh, I might try that WD40 idea. I used some of the Mequiers Gold Class Endurance High Gloss Tire Gel today, I had it in a "detail" box from years ago. I used to use it on my Camaro's tires and it always worked great. I applied it to the cladding and afterwards I went across it with a dry cloth to get all the excess "grease" off and it still looks good after a trip in the rain to work and driving down my dirt road.