Anyone know why all these Waxing and sometimes even car wash bottles have warnings not to use in direct sunlight? maybe it's me or the wax (not zaino) but applyin the stuff on the car looks to make no difference in the shine, or slickness of the car afterwards

 

If the car is hot and absorbing UV....many waxes will streak. Thats why they advise against it.

 

I once baked the wax onto the paint of my moms black e class. She wanted to kill me. It took another coat of wax to get the original baked on coat off. Kinda funny day.

 

The reason I don't put wax on in the sun is because I'll be sweating from the heat!