1. Excellent Physical and Mechanical Properties

• High Strength and Tear Resistance: The PET base material itself has high tensile strength and toughness. The film is not easily torn or punctured, effectively resisting damage to protected surfaces (such as mobile phone screens, furniture paint finishes, and automotive interiors) caused by daily friction and collisions.
• Good Dimensional Stability: It is less prone to shrinkage, deformation, or warping under temperature changes or slight external forces, enabling it to adhere tightly to the surface of protected objects and maintain long-term flatness.

2. Outstanding Weather Resistance and Chemical Stability

• High and Low Temperature Resistance: It can maintain stable performance over a wide temperature range (typically -40℃ to 120℃). It is not easily embrittled at low temperatures nor softened or 粘连 (stuck) at high temperatures, making it suitable for various indoor and outdoor environments.
• UV Aging Resistance: By adding anti-UV additives, many PET protective films can resist yellowing, embrittlement, or performance degradation caused by long-term UV exposure, extending the service life of protected objects (such as outdoor equipment and automotive paint).
• Chemical Corrosion Resistance: It has certain resistance to water, oils, common acids, alkalis, and other chemical substances, and is not easily deteriorated by contact with stains or cleaning agents, facilitating cleaning and maintenance.

3. Diversified Functionality for Wide Application Scenarios

• High Transparency: High-quality PET protective films have a light transmittance of over 90%. When applied to transparent surfaces such as screens, glass, and acrylic, they hardly affect visual effects and maintain clear visibility.
• Customizable Surface Properties:

4. Easy Processing and Convenient Usage

• Easy Cutting and Application: PET films have a uniform texture and can be precisely cut according to different size requirements. Most products adopt a self-adhesive design (with low-tack backing adhesive), which is not prone to bubble formation during application. No residual adhesive is left after removal, and it will not damage the protected surface.
• Lightweight and Thin: With a thickness usually ranging from 25μm to 125μm, it is lightweight and thin, without increasing the weight or thickness of the protected object, and does not affect its original appearance or usage feel.

5. Environmental Friendliness and Cost-Effectiveness

• Recyclability: PET material is a recyclable plastic, in line with environmental trends. Some products can even be degraded or have low pollution.
• High Cost-Effectiveness: Compared with other protective materials (such as silicone and acrylic), PET protective films have mature production processes and lower costs. With a long service life, they can achieve long-term protection effects at a relatively low cost.

Summary

The core advantages of PET protective films lie in their "strong protection, high stability, flexible functionality, and convenient usage". Through different coating processes and customized designs, they can meet diverse protection needs from daily consumer electronics to industrial equipment, making them one of the most widely used protective films currently.