It is heat treated to make it 4 5 times stronger than ordinary glass.
Bulletproof glass sheets of glass.
This bullet resistant plexiglass meets ul 752 leel i and ii requirements for applications involving small firearms.
A sheet of polycarbonate based bullet resistant glass can provide three levels of protection.
Here are the specifications of these three levels.
Bullet resistant acrylic security glass bullet resistant acrylic glass is available uncoated or with an abrasion resistant coating which increases durability against solvents weather and ultra violet light.
Bullet resistant glass in a glass clad polycarbonate make up is a multi ply composite laminate combing polycarbonate and glass using special polyurethane high adhesion bonding interlayers which allow for the expansion contraction differential of both materials.
This bullet resistant glass is made by layering polycarbonate with polyurethane layers in between.
Level 1 level 2 and level 3.
Laminated glass aka bulletproof glass is manufactured differently.
Plexiglas bullet resistant sheeting is available uncoated or with a special abrasion resistant coating.
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There are layers of glass sheets used in bulletproof glass.
But these early bullet resistant glass windows were very unwieldy.
These materials are sold as a part of a bulletproof glass system cut to size or by the sheet.
This variety is 75 inches thick.
It can stop small arms bullets and low blast.
Usually about four inches thick weighing more than 50 pounds per square foot and limited to being cut into small rectangular windows.
Tempered glass when broken disintegrates into small blunt harmless pieces.