As you learned above, window film is applied to the inside of glass with water.
The soapy water triggers the adhesive on the film and causes the window tint to stick to the glass.
The length of time you must wait before rolling down your windows depends on which part of the country you live in.
For this post, I’m going to assume you live in California.
But, if you live in a much colder climate or even a humid one, allow more time than stated for the film to cure.
If you roll down your car windows too soon, after having the glass tinted, the film applied can have several problems.
Now, when the film is applied, the tint installer uses a spray bottle with soapy water and uses a heat gun to mold the film to the shape of the glass, and the heat from the gun will evaporate water.