meguiars gold class carnauba plus

I think a lot of it has to do with time of year. If you paint a car in August and let it sit outside, you can smell the solvents off-gassing and then eventually you don't smell it any longer. Doesn't take that long. Paint a car in December and it will take considerably longer.

You are somewhat correct!
Solvents are used to thin the product. Cure actually is a chemical reaction therefore needing the alotted time to cure. You put wax over a fresh coat of clear it seals the surace therefore solvents trying to evaporate are trapped below the wax. If its hot outside the solvents react faster causing delamination in most instances. Been there done that!