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Bullet Resistant Glass

Bullet-resistant glass is a type of strong but optically transparent material that is particularly resistant to being penetrated when struck.They are not completely impenetrable

Bullet

Architectural Applications

  • Podiums for VIP enclosures
  • Sentry posts
  • Police headquarters
  • Prisons
  • Banks
  • Military facilities
  • Jewelery stores
  • Embassies
  • Museum
  • VIP Residence
  • Residential Building, Villas

How it works

  • Glass is brittle and it does not have a good orderly crystalline structure. If it did, it would be like a metal steel, where it dents and deforms instead of shattering.
  • This allows the glass to absorb the bullet’s energy by transferring the kinetic energy of the bullet into shattering the glass.
  • The softer plastic layer reinforces the glass by holding it in place and allowing the glass to flex back as it absorbs the impact.
  • The polycarbonate and laminate also spreads the force of the bullet laterally across the entire glass surface.
  • Layering these in multiple sheets allows the window to use properties of both materials more effectively; such as the glass on the backside shattering while the undamaged glass holds together the window. This also allows the glass to stop more that one bullet.
  • Since polycarbonate is very strong, and it does not shatter like glass it’s an excellent candidate for bulletproofing.

 

Bullet Resistance Classification According To European Norms EN 1063

  Class Weapon Caliber Type Weight (g) Range (m) Velocity (m/s) Impact Energy Shots
  BR1 Handgun/Rifle 0.22 LR LB/RN 2.6 ± 0.1 10.00 ± 0.5 360 ± 10 170 J 3
  BR2 Handgun 9×19mm Parabellum FJ/RN/SC 8.0 ± 0.1 5.00 ± 0.5 400 ± 10 640 J 3
  BR3 Handgun 0.357 Magnum FJ/CB/SC 10.2 ± 0.1 5.00 ± 0.5 430 ± 10 940 J 3
  BR4 Handgun 0.44 Magnum FJ/FN/SC 15.6 ± 0.1 5.00 ± 0.5 440 ± 10 1510 J 3
  BR5 Rifle 5.56×45mm NATO FJ/PB/SCP 4.0 ± 0.1 10.00 ± 0.5 950 ± 10 1800 J 3
  BR6 Rifle 7.62×51mm NATO FJ/PB/SC 9.5 ± 0.1 10.00 ± 0.5 830 ± 10 3270 J 3
  BR7 Rifle 7.62×51mm NATO FJ/PB/HC 9.8 ± 0.1 10.00 ± 0.5 820 ± 10 3290 J 3
  SG1 Shot Gun 12/70 Solid Lead Slug 31.00 ± 0.1 10.00 ± 0.5 420 ± 20   1
   SG2 Shot Gun 12/70 Solid Lead Slug 31.00 ± 0.1 10.00 ± 0.5 420 ± 20   3
  Without Classification Assault Rifle "7.62x39 AK-47 7.62x39 AP AK-47 7.62x54R 7.62x54R API B-32" "FJ/PB/MSC API PB/HC1 FJ/PB/SCP1 API PB/HC1" "7.9 ± 0.1 7.7 ± 0.1 9.5 ± 0.1 9.8 ± 0.1" 10.00 ± 0.5 "710 ± 15 730 ± 15 845 ± 10 860 ± 10"   3