Is it normal to have bubbles after applying window film?

[McValeria]

It is normal to have bubbles after applying window film. Below is relevant information about bubbles in window film: Dust and impurities: If the glass surface is not properly cleaned and has dust attached, as the adhesion strength of the film increases, pressure builds up around sand particles or dust, leading to bubble formation. Therefore, the car must be thoroughly cleaned and wiped before applying the film. Poor-quality film: Low-quality car films have a rough layer structure and are prone to bubbles, wave patterns, and other issues. Additionally, poor-quality films are more likely to experience adhesive failure, which can also result in hollow bubbles. It is best to choose a high-quality professional car film brand. Inadequate installation technique: If the installer lacks skill, uses unprofessional tools, fails to maximize the removal of moisture during installation, or does not stretch and flatten the film properly, larger and more bubbles may appear. Experienced and skilled technicians can avoid such problems.