Should I wash the car myself or use the 4S store's machine wash before applying the film?

[DeAlice]

Before applying the film, you can either wash the car yourself or use the 4S store's machine wash. Here are the reasons for bubbles appearing in car films: 1. Quality issues: The quality of the car film itself. When purchasing car film, choose products that meet quality standards. Inferior quality products often experience issues like adhesive failure, bubbling, and fading. 2. Installation issues: The quality of the car film installation service. Before applying the film, thorough dust removal and cleaning must be done. If there is dust on the car body or the film itself, bubbles will appear after application. 3. Dust and impurities: The glass surface is not cleaned properly, with dust attached. As the adhesive strength of the film increases, pressure builds around sand particles or dust, leading to the formation of bubbles.