Product properties of toughened glass screen protector
Tempered glass belongs to safety glasses. Glass has a very good wear resistance, and very hard, its Vickers hardness reached 622 to 701. Tempered Glass is in fact a kind of prestressed glasses, in order to improve the strength of glass, usually using chemical or physical methods, the glass surface to form compressive stress, glass under external forces to offset the first surface stress, thereby enhancing the bearing capacity, enhance the glass itself resistance to wind pressure, the thermal, and impact. and tempered glass protective film is for mobile phone screen high security level protection.
Tempered film is to prevent the phone from falling down to break the screen. Not to scratch the flowers. Ordinary film is 3H hardness, the use of a few months will not have too much scraping, the reason for the selection of tempered screen is because: high hardness, low toughness, mobile phone fell, can be a good break screen. When the mobile phone off the ground, bear the impact of a large, tension over the big screen will be broken. Tempered film toughness low when the phone comes out of tension, the film will withstand the tension this greatly reduces the main screen to withstand the tension.
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