In fact, due to design reasons, it has become difficult to apply the smartphone film perfectly in one go on the iPhone 15 series. It is really difficult to apply the iPhone 15 series because it is easy to get air bubbles. In this article, we will explain why air bubbles appear in the glass film for the iPhone 15 and how to remove the bubbles.
First, let’s check the reasons:
Why air bubbles form
・The edges of the glass on the iPhone 15 body are rounded.
As shown in the image, the display glass of the iPhone 15 series has changed.
In addition, the edges of the glass on the iPhone 15 series have a rounded edge design, unlike the flat display on the iPhone 14. Of course, the rounded edge design of the iPhone 15 has the advantage of protecting the edges of the display to some extent whenever it is hit, but since the edges are not flat, it also has the disadvantage that air bubbles are easily trapped when applying the glass film.
Find out more about the iPhone 15 design →
- The presence or absence of air bubbles is determined by the thickness of the adhesive layer.
NIMASO Fun Facts:
The adhesive layer of the glass film is the part that adheres to the screen. If you want to remove the air between the film and the smartphone body, you cannot ignore the importance of the adhesive layer. This is because the thickness of this adhesive part is adjusted so that it does not float.
When manufacturing the iPhone 15 film, NIMASO made the adhesive layer a little thicker to make it as easy as possible for users to apply the film and to prevent air bubbles from getting trapped when applying it.
Of course, it won't affect the smoothness of the iPhone 15's touchscreen, and you won't notice any significant change in how it feels to use, so don't worry. 
As shown in the image on the left, when you apply a regular glass film to the display of the iPhone 15, there will be gaps around the edges. The thin adhesive layer cannot cover the edges of the smartphone, and air bubbles will form around the edges, as shown in the image on the right, and they will not disappear.
Therefore, we adjusted the thickness of the adhesive part to prevent floating. As shown in the image, by making the adhesive layer slightly thicker, the gap between the edge and the glass film can be firmly filled. And the adjusted iPhone 15 film is less likely to have air bubbles and is easy to remove.
・If there is dust on the display surface, air bubbles are likely to form.
If the display surface is not clean, dust will remain and air bubbles will easily form. Therefore, keeping the display clean is important to prevent air bubbles from forming.
Choose quality film
NIMASO iPhone15 film series imagesIn fact, when the glass film itself is bent, the bending tends to cause air bubbles to accumulate inside the film.
This phenomenon occurs when tiny cracks appear on the surface of the bent film or in the adhesive layer, making it easier for air bubbles to enter through the gaps, and is affected by the bendability and adhesiveness of the glass film.
Therefore, choosing a quality film is important to minimize the formation of bubbles.
Air bubbles disappear! Here's how to fix it!
Many people have trouble with air bubbles forming when applying a screen protector to their smartphone. Here are some tips for those who are not good at applying screen protectors to get rid of air bubbles.
・Prevent dust from accumulating before application
place
Static electricity can cause dust to adhere to the device, so choose a windless, dust-free environment such as a bathroom.
Preparation
- Avoid wearing clothing that is prone to shedding.
- Apply it on a flat surface
- Let's wash our hands.
- After cleaning the surface of your smartphone with a screen cleaner (wet paper), use a cloth or dust removal sticker to remove any remaining dust and dirt.
- Note: Be careful not to get any dust on the sides or guide frame of your smartphone.
Hold the film lightly when applying it.
It is important to avoid bending the film as this can easily result in air bubbles forming.
Also, if there is a guide frame, simply peel off the protective sheet from the film, place the peeled side down, and slowly lower the film along the guide frame, and the film will be naturally adhered to the film.
After application, thoroughly remove any air bubbles.
Method 1: To remove any remaining bubbles or impurities, gently wrap a cloth around your fingers and push them out.
Method 2: Gently peel off some of the film and use a dust removal sticker to remove any air bubbles or dust, then repeat Method 1.
Following these steps will help you apply your smartphone screen protector bubble-free. Work carefully to minimize the chance of air bubbles.
NIMASO will also continue to post film application videos, so be sure to follow the NIMASO YouTube channel!
The above are the reasons why air bubbles appear in the glass film for iPhone 15 and how to deal with it.
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