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Detailed Explanation of Common Types and Characteristics of Protective Film Materials

2025/6/13 11:36:36     85
PET protective film is currently the most common type of protective film on the market, and its chemical name is polyester film. The characteristics of PET material protective film are: it is relatively hard in texture, quite scratch-resistant, and will not turn yellow or become oily like PVC material even after long-term use. However, most PET protective films rely on electrostatic adsorption, which makes them prone to bubbling and peeling. But even if they peel off, they can be reused after being washed in clean water. The price of PET material protective film is much higher than that of PVC. Many well-known foreign brand mobile phones come with PET material protective stickers when they leave the factory. The PET material protective stickers are exquisitely made and packaged, and can be used directly without cutting.
The main raw material of PE material protective film is LLDPE, which is relatively soft and has a certain degree of stretchability. The general thickness is 0.05MM to 0.15MM, and its viscosity varies from 5G to 500G depending on the usage requirements (the classification of viscosity is different between domestic and foreign countries. For example, 200 grams of Korean film is equivalent to about 80 grams in China). The PE material protective film project is further divided into anti-static film, mesh film, etc. Electrostatic film, as the name suggests, uses electrostatic adsorption force as its adhesive force. It is a protective film without any glue at all. Of course, its adhesiveness is relatively weak. It is mainly used for surface protection in electroplating and other fields. Mesh film is a kind of protective film with many grids on its surface. This protective film has good air permeability and a more beautiful pasting effect. Unlike plain film, it does not leave air bubbles.
OCA material protective films look no different from other materials in appearance. However, OCA material protective films are produced in Japan and are now widely used in Apple phones. They are better than other materials in terms of gloss and hardness, so OCA is a popular material for mobile phone protective films nowadays.
AR material screen protectors are currently the best type of screen protectors available on the market. AR is a synthetic material, generally consisting of three layers: silica gel as the adsorption layer, PET as the middle layer, and the outer layer as the special treatment layer. The special treatment layer is usually divided into two types: AG treatment layer and HC treatment layer. AG is the anti-glare treatment, and the frosted protective film adopts this treatment method. HC stands for hardness treatment, which is the treatment method used for high-transparency protective films. The feature of this screen protector film is that the screen does not reflect light, has a high light transmittance (over 95%), and will not affect the display effect of the screen. Moreover, the surface of the material has undergone special process treatment, making it relatively soft in texture. It has strong anti-friction and anti-scratch capabilities and will not show scratches even after long-term use. The chemical material silicone is used to adhere it to the mobile phone screen, so it will not cause damage to the screen itself. After peeling it off, there will be no mark left, and it can also be reused after cleaning. It can also be easily purchased on the market at present, but the price is higher than that of PET material.