ok, a lot of dressings or protectants for vinyl/rubber surfaces have silicones in them, however I have heard from some people that it turns the surface yellow after a while. Is this true? Also, what are the advantages and disadvantages of using products that contain silicone? I also heard somewhere that body shops avoid them because they mess up paint finishes or something like that. Not so sure about all this stuff that's why I want to see if anyone knows the real deal on this.