Applied some Veil G4 to my 2007 Chrysler 300C SRT8 on Friday evening in my garage. Temperature was in the 70's, headlights and fog/driving lights were at same temperature. Did a good job and was happy with the results. Drove the car to work 18 hours later and then home 6 hours after that with the headlights and fogs on. I have an 8 minute commute. Parked car in garage until today, Sunday, when I took it out to wash the wheels before church. I noticed that both fog lens are heavily cracked, not just little spider webs but cracks. Headlights and side markers are still fine at this point. I am running the stock 42 watt 2145 bulbs in the fogs and HID's in the headlights. There were no significant temperature differences or moisture and I didn't use any stringent cleaning materials prior to application. What did I do, or not do that would make BOTH lens crack the following day? All I can think of possibly is the film trapped/reflected heat in the lens and even after just 8 minutes of use caused the lens to overheat and break. This shouldn't happen. I could see if I were running higher wattage bulbs, or if just one cracked but these are only 42watts and they are OE bulbs. Replacement fog lamp assemblies are not that expensive but I am worried about the headlamp lenses after an extended multiple hour drive. I know HID's run cooler but I live in the sticks so I use the high beams often and they are not HID. Should I remove the Veil from the headlights, suggestions?