How to check if the glass film is well adhered after applying it? Here are some methods to check the quality of film bonding:

1、 Check cleanliness

Firstly, carefully observe whether there are stains, dust, debris, etc. between the car film and the exterior glass of the car. These pollutants not only affect the appearance, but may also affect the adhesion effect and service life of the car film.

2、 Appearance integrity inspection

Carefully inspect the surface of the film to ensure there are no creases, water bubbles, bubbles, or surface scratches. These issues not only affect visibility, but may also impact the performance and safety of the car film.

3、 Fit inspection

Looking outward from inside the car, check if the film is tightly attached to the edge of the window glass, with no obvious gaps for light transmission. At the same time, it is necessary to ensure that the surface of the film is free of defects such as water squeezing marks, water ripples, and baking marks.

4、 Check the optical quality

Before the film is completely dry, optical quality inspection can be carried out. Check for any deformation of object imaging or water mist caused by the presence of water, which are normal phenomena during the membrane drying process. But ensure that these phenomena disappear in the end to ensure clear visibility.

5、 Edge inspection

Check if the edges of the film are neat and if there is any glue overflow. The edge of the film and the edge of the glass usually have a width difference of 1-4 millimeters, which is to facilitate the removal of water during installation and ensure that the edge of the film is not easily blown by the window frame.

6、 Check for bubbles

Ensure that there are no water or air bubbles on the glass after applying the film. If there are bubbles, they need to be dealt with in a timely manner to avoid affecting the quality and effectiveness of the film.

7、 Thermal insulation effect inspection

The insulation performance of the film sample can be judged by feeling its insulation effect under sunlight. High quality film has good thermal insulation performance and can effectively block heat.

8、 Scratch resistance test

Gently scratch the surface of the film with a key or coin to check for any scratches. High quality film has good scratch resistance and is not easily scratched.

9、 Understand the film material and brand

Understanding the material and brand of the film is also an important basis for judging its quality. The performance of films made of different materials also varies, such as nano ceramic films, dyed films, etc. The quality of films from well-known brands is more guaranteed.

Through the above inspection, it can be ensured that the glass film adheres well, improving the service life and performance of the glass film.