No problem for the installation carried out two. I have washed the glass that I have sprayed with water mist and then applied the film (re-misting) to finally remove all air bubbles and excess water using a map credit. The record was impeccable ... really at that moment. The next day, once every dry, a multitude of traces appeared mostly on the periphery of the film, it does not seem to be air bubbles since the film adheres well to the glass and that these traces do not change appearance when pressed. The film perfectly fulfills its function, I can finally work with open blinds without having to sunglasses, but the final result really does not own after dark.