OK, I was wondering about this. I had some overspray get on my black plastic and it did not leave it white like wax does...If it will really work on black plastic, that would be a game changer.!!!! I just did 303 on mine but if this could really work that would be AWESOMEAlso worth noting that ceramic can be applied to black plastics and it keeps them black for a year. For some reason it doesn't bond as well to textured plastic like it does paint but sure enough, makes it look like mother's back-to-black was applied every week for a year once again, making washing a breeze. Never have to deal with that scrubbing of dirt/mud stains and/or sun faded plastics.