Home » Technical Support » Detailed Description of PP, PVC, PET and AR Protective Film

1. PP
PP (Polypropylene) protective film is the first one that appears on the market among others. This material is actually what we usually use to make the plastic bag. It has no adsorption capacity and is generally pasted by glue. After tore, it will leave glue marks on the screen and will corrode the screen for a long time. Now this material is almost eliminated by protective film manufacturers.
2. PVC
PVC protective film features soft texture and convenient pasting. However, this material is relatively thick, which leads to poor light transmittance. It will also leave glue marks on the screen after torn off, and turn yellow as the temperature changes. With no scratch resistance, there will be obvious scratches on the surface after a period of use, which affect the display effect of the screen and overall beauty of the phone. In addition, PVC is a toxic material, containing heavy metal.
3. PET
PET (Polyester) protective film is currently the most commonly used one on the market. In fact, the plastic cola bottle is made from PET material. It is characterized by relatively hard texture and scratch resistance. It will not turn yellow like PVC material for long time use. In general, it relies on electrostatic adsorption, so that it is prone to blistering and shedding. But even falls off, it can be reused after washed in clean water.
A lot of well-known brand mobile phones are equipped with this film. For hot-selling phone models, there are specifically made films for protection, which can be directly used requiring no cutting. Some of famous-brand REDBOBO and OK8 films are produced using the PET material.
4. AR
AR protective film is currently the best screen protector on the market. As a synthetic material, it is generally divided into three layers (silica gel as the adsorption layer, PET as the intermediate layer, and a specially-treated layer as the outside layer). This screen protector ensures no reflection of light, and a high transmittance of above 95%, so as not to affect the display effect of the screen.
Through special treatment, it enjoys soft texture, as well as strong anti-friction and anti-scratch capacity. Due to the adoption of silica gel, it will not do harm to the screen itself and not leave makes after torn off. In addition, it can be reused after cleaning.
5. PE
The main raw material of PE protective film is LLDPE, which is relatively soft and has certain stretchability. The general thickness is 0.05MM-0.15MM, and its viscosity ranges from 5G to 500G depending on the use requirements. It can be further divided into static film, reticulate film, and more. Static film utilizes electrostatic adsorption as viscous force, with no glue at all and certainly its viscous is relatively weak. It is mainly used for protection of electroplated surface. Reticulate film comes with a lot of grids on the surface. It achieves good air permeability and pasting effect.
6. OPP
OPP protective film is relatively close to PET type from the appearance point of view, however its hardness is higher. It has certain flame retardance, but the pasting effect is poor, so it is generally rarely used on the market.
7. OCA
OCA protective film has no differences with others from the appearance. It is made in Japan, and widely used on the Apple phone. In addition, its transmittance and hardness are better than other materials, so it is now the most popular mobile phone screen protector.

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