The most important question I have is – did it smell or rubber or plastic when the flex seal heated up in the desert??
I know it said flex seal withstands fire but does it produce fumes once dried up?
For the reference, I am bringing a wall tent as shade structure (10 × 12) and having a small tent (7 × 7) to sleep in dust free (hopefully)
Still have to buy the small tent as my budget is about $60 and I was not able to find anything with no mesh for that price

Suggest a cheap tent like that with no mesh if you know any.
Thank you