What are the causes of bubbles after film application?

[McJackson]

The causes of bubbles after film application are as follows: Whether it is car heat insulation film or invisible car wrap, the following situations can easily lead to problems such as bubbles. 1. Dust and impurities: The glass surface is not cleaned properly, and dust adheres to it. As the adhesive strength of the film increases, pressure builds up around sand particles or dust, resulting in bubble formation. 2. Low-quality film: Inferior car films have a rough layer structure and are prone to bubbles, wave patterns, and other phenomena. Low-quality films are also prone to adhesive failure, which can lead to hollow bubbles. 3. Inadequate installation technique: Another common reason is the lack of skill of the installer, unprofessional tools, insufficient removal of moisture during installation, and improper stretching and smoothing of the film surface, leading to numerous and large bubbles.