Intrepid00,
The member stated he was considering using a space heater in his garage. I stated be careful with heat; I was referring to his comment on the use of space heaters, subsequently advising member to read the entire product labels, which has more information around proper use. I will edit my response to be more specific.
From what you described your application sounds proper. Preparation, like the use of clay, compound/polish if needed, followed by the included M122 Surface Prep Spray, & two coats of Hybrid Paint Coating an hour apart from each other, with the application itself applied above 60F, not exposing to water for 12-24 hours & ideally 7 days for the full cure.
Regarding applying on a hot day, as long as the panels are not in direct sunlight & you are working in the shade, we do not anticipate any issue, except for maybe a little harder wipe off.
No special recommendations around humidity for this product.
As mentioned on the label, our up to 1+ year paint protection is based on water contact angle lab testing & predictive modeling. It's difficult to get into more specifics without potentially sharing too much, but essentially driving around, washing weekly, and testing certain characteristics, repeat. It has also shown to perform very well in a variety of environments. Regarding UV, in our testing it performs great. A couple of the top variables which can really affect the long term durability of a coating is where the vehicle is being parked & how often it is washed. Try to avoid parking in a spot where it may potentially get constantly abused, for example, next to sprinklers or under trees if it is going to rain. Regarding washing, try to wash weekly. The longer environmental contaminants sit on top the paint surface, the more likely they are going to affect your paint protection, with any product that is being used.
Even if maintaining with our Hybrid Ceramic Detailer, Hybrid Ceramic Spray Wax, or Hybrid Ceramic Wash & Wax, we recommend re-applying Hybrid Paint Coating around once a year for optimum performance. With that said, it can last longer if the vehicle is really kept up well, and additionally, extreme weather or situations, like salt from roads, harsh chemicals, or lack of washing, it may not last as long as well.