does not work....the first time. The plastic on the bumpers of my Colorado had been very neglected when I bought it. I tried this product and was very disappointed. There was no difference as the restorer just moved around without penetrating the surface. I decided to try it again at a later time and was very surprised. My plastic trim looked almost brand new. It seems that if plastic trim goes past a certain amount of time without care, it takes more time in addition to extra applications for the plastic restorer to work. I'm sure many of you knew this already.