I used to be a certified Llumar tint installer. Vinyl (frosted or whatever) and window tint are nothing alike. you'd think they might be but they are not. Completely different application tecniques. With window tinting, you have to spend so much more time cleaning, not only the glass but the frames and everything else around. window tint can pull tiny particles of dust from the air and totally mess up your installation. It can be that frustrating. I'm not saying you cant do it, i'm just saying that they aren't the same.