Water-soluble protective films, typically made of polyethylene terephthalate (PET), are a type of screen adhesive that offer temporary and removable protection for the displays of mobile devices, such as smartphones and tablets. These films are designed to be easily applied and removed without leaving any residue or causing damage to the underlying screen.

Key features of water-soluble protective PET film for mobile phones and iPads include:

1. Transparency: The PET film is highly transparent, allowing for clear visibility and interaction with the device's display.

2. Scratch and impact resistance: The film provides a protective layer that helps shield the screen from minor scratches, scuffs, and impacts, keeping the display in pristine condition.

3. Water solubility: The film can be easily removed by simply applying water, making it convenient to replace or reapply as needed.

4. Reusability: Water-soluble PET films can often be reapplied multiple times, making them a cost-effective solution for protecting mobile device screens.

5. Compatibility: These films are designed to be compatible with a wide range of mobile devices, including smartphones, tablets, and other touchscreen-enabled gadgets.

The application process for water-soluble protective PET film typically involves the following steps:

1. Clean the device's screen thoroughly to ensure a proper adhesion.
2. Peel off the protective liner from the PET film.
3. Carefully align and apply the film onto the device's screen, smoothing out any air bubbles.
4. When ready to remove the film, simply apply a small amount of water to the edges, which will dissolve the adhesive and allow the film to be peeled off.

These water-soluble protective films are particularly useful for:

• Safeguarding mobile device screens during daily use, transportation, and storage
• Maintaining the pristine condition of the display for resale or trade-in
• Providing a temporary, removable barrier to prevent scratches and smudges
• Allowing for customization or personalization of the device's appearance

By using water-soluble PET screen adhesive films, mobile device users can enjoy enhanced protection and the flexibility to remove and reapply the film as needed, without compromising the functionality or user experience of their devices.