I have done that myself.
To do a window tinting, you need a clean environment, a table used as cutting surface, a spray bottle, baby shampoo, distilled water, sharp rasor blade knife, some hard paper. Plastic card like credit card, -- if you don't want to buy the professional tool like hard card, Bondo card, red devils.
To squeeze the air out under the film, you must do it when the film is still wet, like within one hours after you do the tinting job. Plastic card is a perfert tool.
You have to remove the film and redo the tinting, if you want your job look like professional.
To do a window tinting, you need a clean environment, a table used as cutting surface, a spray bottle, baby shampoo, distilled water, sharp rasor blade knife, some hard paper. Plastic card like credit card, -- if you don't want to buy the professional tool like hard card, Bondo card, red devils.
To squeeze the air out under the film, you must do it when the film is still wet, like within one hours after you do the tinting job. Plastic card is a perfert tool.
You have to remove the film and redo the tinting, if you want your job look like professional.