Has anybody tried using this instead of mylar? I was thinking about it the other day, and I'm pretty sure that they can/will cut it to size for you. That would be way easier to install in almost any box or cab than gluing films or foils, and less time than letting paint dry.
The first thing that would turn me off would be the price.....you can buy a sheet of 10 x 10 white Mylar for 10 bucks.....I could go on but I won't bother....good luck