Only lay down and make contact with the amount of film to which you can apply high squeegee pressure. While squeegeeing, work from center, out and the top, down.
Air is easily trapped between the surfaces of the adhesive and sign surface. A signage installer who keeps an opening near the squeegee will find that the possibility of air entrapment is minimized
TIP_2_Application_Rule_of_Thumb_for_All_Graphic_Film_Installs_ENG