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Bulletproof Glass

Nov. 24, 2020

The total thickness of the bulletproof glass is proportional to the bulletproof effect. Generally, tempered glass is not allowed, because the broken glass will form dense small particles that affect the observation, and if the tempered glass is broken, the small particles are more likely to fall off, which is not conducive to protect human safety.

 Bulletproof Glass

The bullet-proof glass is divided into the front bullet surface (the direction of the bullet hitting) and the back bullet surface. The front bullet faces the shooting direction when installed.

 Bulletproof Glass

Note: Polycarbonate board also called endurance board, is made of polycarbonate as the main component and co-extrusion technology. The light transmittance of PC board can reach up to 89%, which is comparable to glass; the impact strength is 250-300 times that of ordinary glass, 30 times that of acrylic board of the same thickness, 2-20 times that of tempered glass, and its specific gravity(1.2) is only half for glass. But the PC board is not resistant to strong acid, durability, and alkali, so it needs to be coated with a protective coating.


Bulletproof glass standard

Bulletproof glass standards are divided into national standards and industry standards. The national standard is GB17840-1999. Generally, the domestic implementation of the bulletproof transparent material industry standard GA 165-2016 formulated by the Ministry of Public Security.


According to the GA 165-2016 standard, bulletproof glass is divided into two categories (A and B) 6 grades, as follows:

Classification: After shooting tests on bulletproof transparent material samples, the products are classified as follows according to the state after the test:

Class AThe bullet or shrapnel did not penetrate   the bullet-proof transparent material, and there were splashes on the back of   the bullet-proof transparent material, but there was no penetration test   card.
Class BThe bullet or shrapnel does not penetrate   the bulletproof transparent material, and there is no splash on the back of   the bulletproof transparent material

Explanation: Class B is safer and stronger.


Grade: Bulletproof transparent materials are graded according to the ability to resist different firearms and bullets, and are divided into 6 levels:

GradeType of bulletWarhead massBullet speed m/sApplicable gun type
Grade 11964-style 7.62mm pistol bullet (lead   core)4.87g330±101964-style 7.62mm pistol
Grade 21951 Type 1 7.62mm pistol bullet (steel   core)5.60g445±101954 7.62mm pistol
Grade 31951 Type 1 7.62mm pistol bullet (steel   core)5.68g515±10Type 79 submachine gun
Grade 41956-style 7.62mm ordinary bullet (steel   core)8.05g720±101956-style 7.62mm semi-automatic rifle
Grade 51953 type 7.62mm ordinary bullet (steel   core)9.60g830±101979-style 7.62mm sniper rifle
Grade 6Type 53 armor-piercing incendiary10.45g810±101985-style 7.62mm sniper rifle
Note: The bulletproof performance over 6   is a special grade.

Bulletproof Glass

According to the temperature of the environment where bulletproof transparent materials are used, they are divided into four levels, as follows:

Level I0°C~40°CLevel III-25°C~55°C
Level II-10°C~55°CLevel IV-55°C~85°C

Code: The code of bulletproof transparent material is composed of product name code (FDCL), product classification code, product grade code, product thickness, enterprise custom code, and environmental suitability classification, for example: FDCL-2B-25-JF1-III


FDCL→ stands for bulletproof transparent material

2B → means level 2 splash resistance, that is, anti-1954 type 7.62mm pistol fired 1951 type 1 7.62mm pistol bullet (steel core)

25→The material is marked with a thickness of 25mm.

JF01→Enterprise custom code

III→Environmental temperature adaptability is Class III (-25°C~55°C)

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