So i removed my grille to paint and i wrapped the front area with a garbage bag for a few days and the next day it rained so when i went to remove it the day after there is like some dull spots over the side and edges. The car is brand new so i know it wasn't there before it, looks like sticker residue but its not. I would take a picture but its not visible in it. Some other note is that its not visible when wet or when no sun is shinning on it. Any clue what it is? The clear coat?(don't see how that can happen) The bag melted on it?

 

Haze or Moisture Entrapment

Paint will sometimes show ‘hazing” after removing a car cover or plastic covering that has not allowed transpiration. The temporary hazing, which can appear as a slight dull discoloration, stain, or raised surface in the paint is caused by the paint finish absorbing moisture

Correction- In most cases, by applying Isopropyl alcohol (IPA) and exposure to heat (sunlight, heatgun or haidryer) which allows the moisture to evaporate within a few hours. For colder climates, moisture evaporation recovery can be accelerated by placing the vehicle indoors and using a portable infrared heat lamp (or professional-type heat gun). Allow the affected area to outgas by not using a wax or sealer on the affected are for a few days

 

You need to clean car dry area very well and buff or wax. This could be moisture entrapment or just the wax being removed showing a hazing look. GL

 

Thank you to both, i will give this a try and hopefully it works!