I used it once on some untreated side mirrors (silver) on my elantra to look more like my accord. Also used it on the accord trim between the side windows that was fading out. After about 2 years it has degraded substantially. It doesn't weather good but for the short term it looked really good. Just use paint tape and newspaper around the areas you don't want as the spray puts droplets EVERYWHERE. Also, practice a lot. It glops up very easily on whatever you are spraying.