PET double-layer silicone protective film is a type of protective film commonly used in electronics, optics and other fields. The following is its related introduction:
Structural composition
PET substrate: PET (polyethylene terephthalate) features high strength, high transparency, excellent chemical resistance and dimensional stability, providing solid support and stable physical properties for protective films.
Silicone coating: A silicone layer is coated on both sides of the PET substrate. Silicone has excellent adhesion and softness, which can closely adhere to the surface of the protected object. At the same time, it can be easily peeled off when needed without leaving any residue, providing good protection for the protected surface.
Characteristics
High transparency: The high transparency of PET itself, combined with the optical properties of the silicone coating, makes the protective film have an extremely high transparency, reaching over 90%, which almost does not affect the visual effect of the protected object. It is particularly suitable for electronic screens and other products with high display requirements.
Good adhesion: The silicone coating has moderate adhesion, which can not only firmly adhere to the surface of the object to prevent the protective film from falling off, but also maintain good peeling performance when removed, without damaging the surface of the protected object. This viscosity also has a certain degree of weather resistance and can maintain relatively stable viscosity under different environmental conditions.
Scratch and wear resistance: The PET substrate endows the protective film with good mechanical strength, enabling it to resist a certain degree of scratches and wear, effectively protecting the surface of the protected object from being scratched by external objects and extending the service life of the product.
Chemical resistance: Both PET and silicone have certain chemical resistance and can resist the erosion of common chemical substances such as acids, alkalis, and organic solvents. They can still maintain the stable performance of protective films in some complex chemical environments.
Good flexibility: The protective film has good flexibility and can adapt to the protected objects of different shapes and curved surfaces, closely adhering to their surfaces and providing comprehensive protection.

Application field
Electronic screen saver: Widely used in screen protection for electronic devices such as mobile phones, tablet computers, laptops, and LCD monitors. It can prevent the screen from being damaged by scratches, fingerprint contamination, dust adhesion, etc. during production, transportation, storage and use, while not affecting the display effect and touch performance of the screen.
Optical lens protection: For optical components such as camera lenses, spectacle lenses, and optical instrument lenses, the PET double-layer silicone protective film can safeguard the optical coating on the lens surface during processing, assembly, and transportation, preventing it from being scratched or contaminated, and ensuring that the optical performance of the lenses remains unaffected.
Precision instrument protection: During the production and transportation of some precision instruments such as semiconductor equipment and aerospace components, the use of PET double-layer silicone protective film can safeguard their high-precision surfaces, preventing scratches or damage caused by contact with external objects, and ensuring the accuracy and performance of the instruments.
Automobile interior protection: It can be used for the protection of interior components such as car instrument panels, central control screens, and seat leather. During the automotive production process, prevent interior components from being scratched or soiled during assembly. In the process of car sales and use, it can also provide consumers with a brand-new product experience and extend the service life of interior components.