My cladding looked similar to that when I got mine, it was not paint is was the outer layer of the cladding flaking because it was so dry and the plastic was oxidizing and starting to sort of turn to dust, I used 409 to get off some of the chalky stuff (409 has acid in it so it got off 50% of it) then I wiped it down acetone on a terry rag and that got more of that pealing chalky crap off. I then used a bunch of different greasy treatments but they all only lasted a few months because the cladding was just too oxidized and it just looked like crap. In the end I cleaned all the oily crap off wiped it with acetone again, washed and dried it, them I lightly painted it with dark charcoal trim and bumper paint from the auto parts store, the color is almost and exact match to the back of the cladding (the original color) so when is gets scratched is barley shows and I can touch it up easy anytime. If you do this just be sure to paint VERY light coats it worked well for my terrible cladding. I Just masked off the lights and taped news paper to the upper painted part, I think it took 8 to 10 hours with all the cleaning and prep I did but now I don't have to treat it with greasy crap and can touch it up easy and I only spent about $30-$50 for cleaning supplies and paint (2 cans) I tested an area first and left it for a couple of weeks to see how it looked and liked it so I did the whole truck. If I spill gas on it I do have to touch up that spot but it only take a few minutes.