I have been having problems with my wax on the lower half of my car. About a month and a half ago I clayed my car and put two layers of 845 on. After about two weeks the dirt build up on the bottom half of my car was terrible. When I washed the car I noticed that the hood, roof, trunk and the rest of the upper half of the car beaded water excellently, but the bottom half didn't bead at all. I decided to clay the bottom half again and do two coats of 845. It's about two weeks later and the bottom half is starting to load up with dirt and is not beading at all. Can someone help and give any suggestions for fixing this? I will show a photo of the beading on the hood/quarter panel and a photo of the bottom section of my car where it is not beading. You can clearly see a line where it stops beading.