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Which is better for tempered glass film and HD film?

Views:3     Author:Site Editor     Publish Time: 2019-05-24      Origin:Site

Tempered glass film

Tempered glass/Reinforcedglass is a safety glass. The glass has very good wear characteristics and is very hard with a Vickers hardness of 622 to 701. Tempered glass is actually a kind of prestressed glass. In order to increase the strength of the glass, chemical or physical methods are usually used to form compressive stress on the surface of the glass. When the glass is subjected to external force, the surface stress is first offset, thereby improving the bearing capacity and enhancing the resistance of the glass itself. Wind pressure, cold and heat, impact and so on. The tempered glass protective film protects the highest security level of the mobile phone screen.

The tempered film is designed to prevent the phone from falling and breaking the screen. Not for scratch prevention. The ordinary film is 3H hardness. It will not have too many scratches after several months of use. The reason why the steel screen is selected is: high hardness, low toughness, and the mobile phone is broken, which can be a good anti-shatter screen. When the phone is dropped on the ground, the impact is great. If the tension is too large, the screen will be broken. The toughness of the tempered film is low. When the tension is transmitted from the mobile phone, the film will withstand the tension, which greatly reduces the tension on the main screen.

How to identify a good tempered glass protective film:

1. Exhaust gas is not good on the surface of the mobile phone;

2. The surrounding corners of the tempered glass cannot be stuck or bubbled;

3. The tempered glass can not adhere to the mobile phone and is easy to fall off;

4. The tempered glass is too thick, affecting the light transmittance, and thickening the thickness of the mobile phone;

5. The glue adhered to the tempered glass is too thick, which affects the light transmittance of the mobile phone;

6. After the tempered glass is attached to the mobile phone, there is a watermark on the surface of the mobile phone.

7. The tempered glass film is also divided into straight edges and arc edges, and the arc edges are more rounded with respect to the oblique sides, which is not easy to hurt.


Ordinary HD film:

PP material

The protective film of PP material was first appeared on the market. The chemical name is polypropylene. It has no adsorption capacity. It is usually glued with glue. After it is torn off, it will leave a mark on the screen. It will corrode the screen for a long time. This material has been basically eliminated by the majority of protective film manufacturers, but some roadside stalls are still selling, we must pay attention!

PVC material

The PVC material protection sticker is characterized by its soft texture and easy to paste, but the material is thicker and the transmittance is not good, making the screen look rather awkward. The mark of glue will also be left on the screen after tearing off. This material is also relatively easy to turn yellow with oil as the temperature changes, and the service life is relatively short. Therefore, this protective film is basically not seen on the market.

What can be seen on the market is a modified version of PVC protective film, which solves the problem of poor weight and poor light transmission, but still can't solve the problem of easy turning yellow oil, and it is necessary to pay attention to the material of PVC. It does not have the ability to resist scratching. After using it for a period of time, there will be obvious scratches on the protective film, which will affect the overall display of the mobile phone. The PVC itself is a toxic material with heavy metal components. It has been completely discontinued in Europe. This PVC modified version of the screen protector is widely available in the market. The feature is that it feels very soft in the hand, and many well-known protective film manufacturers have stopped using this material.

PET material

PET material protective film is the most common kind of protective tape on the market. The chemical name is polyester film. PET film protective film is characterized by relatively hard texture, relatively scratch-resistant, and it will not turn like PVC material for a long time. Yellow oil. But the general PET protective film relies on electrostatic adsorption, it is easy to foam and fall off, but even if it is washed off in clean water, it can be reused. The price of PET protective film is much more expensive than PVC. . When many foreign famous brand mobile phones are shipped from the factory, the PET material protection stickers are randomly arranged. The PET material protection stickers are more exquisite in workmanship and packaging. There are special protection stickers for hot mobile phone models, no need to cut. Use directly.

AR material

The AR material protector is currently the best screen protector on the market. AR is a synthetic material, generally divided into three layers, silica gel is the adsorption layer, PET is the intermediate layer, and the outer layer is a special treatment layer. The special treatment layer is generally divided into two types, AG treatment layer and HC treatment layer, AG is anti-glare Treatment, frosted protective film is the use of this treatment. HC is the hardness treatment, is the treatment method used for high light transmission type protective film. This screen protective film is characterized by the screen is not reflective, high transmittance (95% The above) will not affect the display of the screen. Moreover, the surface of the material is treated with special technology, and its texture is soft, and it has strong anti-friction and anti-scratch ability. It will not scratch when used for a long time. The chemical material is adsorbed on the screen of the mobile phone, so it will not be The screen itself causes damage, leaving no mark after tearing off. It can also be reused after cleaning. It is also very easy to buy on the market, and the price is more expensive than PET.

PE material

The main raw material is LLDPE, which is soft and has a certain stretchability. Generally, the thickness is 0.05MM-0.15MM, and the viscosity varies from 5G to 500G depending on the application requirements (the viscosity is different between domestic and foreign countries, for example, 200 grams of Korean film is equivalent to about 80 grams in China). There are also electrostatic film and textured film under the protective film project of PE material. As the name implies, electrostatic film is a kind of protective film with electrostatic adsorption force. It is a kind of protective film with no glue at all. Of course, the viscosity is relatively weak, and it is mainly used for surface protection such as electroplating. The textured film is a kind of protective film with many meshes on the surface. This protective film has better air permeability and the paste effect is more beautiful, unlike the plain film, which will leave bubbles.

OPP material

The protective film of OPP material is closer to the PET protective film in appearance, and has a relatively high hardness and a certain flame retardancy, but its paste application effect is poor, and it is rarely used in the market.


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