[China Glass Net] At present, there are many kinds of various membrane materials on the market. It is easy to confuse the difference between security film and security film. How to judge high-quality automotive glass security film with good impact resistance is crucial. . Cotton Polyester Spandex Fabric Spandex Fabric,Poly Spandex Fabric,Polyester Spandex Fabric,Cotton Polyester Spandex Fabric SHAOXING HENGHAI TEXTILE CO.LTD. , https://www.henghaitextile.com
First, the thickness of the security film is between 100 and 175 micrometers (about 4-7 mils) in terms of the structure and thickness of the material; and the security film is a multilayer polyester composite film laminated by a special process, and the thickness is 250 microns (about 10 mils) or more. Thickness is a hard indicator that distinguishes between a safety film and a security film.
Second, the protection level is compared with the protection concept. The design of the safety film can prevent or reduce the damage that may be caused to the human body when the glass is accidentally broken. It can only prevent the glass splash problem caused by glass self-explosion, and the protection level is low. The design of the security film is to absorb the explosion shock wave and resist the impact of strong energy. The high-end security film and glass combination can even achieve the bulletproof level, and the protection function covers the security film effect while achieving the level of security.
Third, there is a clear distinction between the safety film and the security film in terms of implementation standards. The standard that a safety film can generally achieve is based on preventing glass breakage. Most of these standards are to prevent "glass breakage". For example, the safety film is to prevent the window glass from being broken when it is subjected to low energy impact; if the glass is broken, the residual film still needs to adhere to the safety film in a large area to prevent it. Secondary damage caused by falling off the glass. The detection standard of the security film is based on the prevention of penetration.
After listening to the difference between the two, let's see how to escape in the car with the safety film and security film attached to the car.
We know that the security film is thicker, 8 times the thickness of the sun film, or even higher. Attaching a security film to the car window glass can improve the impact resistance of the glass. At the same time, once the glass is crushed, it can block the penetration of external impact. Such a thick security film can block the impact of large energy, and it is especially important to escape the window when it encounters flooding.
The comprehensive experts and various aspects of the introduction, the key to the problem is not what kind of film is attached, but the glass must be broken. Once the glass is crushed, whether it is a sun film or a security film, it will not become a barrier to escape. .
Because the side window glass of the automobile mainly adopts a single piece of tempered glass. When the glass is broken, the inner side has the support of the film layer; in particular, the security film is firmly bonded to the glass under the action of the adhesive, which is very Strong support tension, the broken glass still maintains a rigid overall. At this time, the force from the outside of the car to the inside of the car is not easily pushed down or penetrated. When we apply force from the inside of the car to the outside of the car, the glass is easily pushed down without the support pulling force generated by the film. Of course, the premise is that you must break the glass.