I bought the car a year ago from the original owner. I can only guess that he applied the ceramic near the beginning of his ownership (as he also wrapped the front end) which would make it 3 years...
Came back from out of town for a couple of days and discovered a few bombs. I usually remove them as they happen but obviously couldnt this time. Several came off easily but this one on my T-top...
Well I scrubbed them down a bit with the TW cleaner and recoated 3 layers and they look like they did when I first did it. That cleaner seems to really work well