I went to a shop that has the pattern maker for the cutting of these plastic films. The owner of the shop showed me the whole layout of the shop, the prep area, the rolls of different thickness plastics, the application, etc
if you look very closely you can just make out the edges of the film, he told me that dirt, wax, etc. will build up along those edges, but, with a bit of TLC, its not very difficult to clean that area.
I wanted to have it in a few places, like the front & hood area & anywhere someones belt buckle could scratch the paint, & then around the gas filler access door.
My factory paint job has so much orange peel on the whole cab, that the price is not worth it, when the current paint job gets damaged enough to have it repainted properly, i will be using the 3M
I did get my headlights & windshield done with a chemical called
Diamon-Fusion, its a nano technology product, most of the small impacts that typically hit the windshield during normal driving conditions and that will typically chip, dent or even crack an untreated windshield, will bounce right off a DF-treated windshield due to the impact resistance properties. It has saved my windshield on many occasions, i closely follow semi trucks for a living, i'm tailgating more often than not, rocks are always hitting my truck & i don't have a single mark on the glass or plastic headlight covers
another good thing about it, watch the video, 1 side of glass has not been treated, glad they used a Chebby
http://www.youtube.com/watch?v=j2MyQTY6saY