For wipe on coatings, there are both types. Some are 2 part mix, and some are single stage no mix.
The spray coatings do tend to cost more. Some are very expensive, up to $10-20 per car.

And yes... they have unique issues with working outside in the elements. You also should mask off around the light to spray, to keep overspray off the car.
I'll also add.. with the uv cure products, you better get it right the first time, because (unlike the common wipe on coatings) it's difficult to remove it and re-spray if you don't like what you see. Spray coatings add a degree of difficulty, but it's worth it imo.
I'll be testing Delta's new Infinity coating soon. It seems to address the 2 big problems I have with the other wipe on products, Delta's C2p, Develup, Minwax, etc.... imo these coatings are not durable enough. They can look great and they make the job super easy, but I think the coating is too soft (easily scratched, etc) and doesn't last long enough. I had started using it after seeing some results others were having.... nearly 2 years and starting to break down, still looking pretty good. But since then, I've seen and heard of plenty of examples that are not nearly that good. I decided that I wouldn't use them on my car, and wanted something better, both for my car and for my customers. I want to be confident in offering at least a 1 year guarantee. I decided that if I can't... then why even bother doing it? I would still have dealers wanting me to dress up their stuff, but I don't want to do any retail work, or my car, or my friend's car, or worse... how about a sales manager's car? Do I really want to tell him he needs to apply a plastic protectant/wax every few weeks and try to park in the shade from now on?

um, no.... Ok, off my soap box now!
