Q:

How do you make glass-laminated bulletproof glass?

A:

Quick Answer

To make glass-laminated bulletproof glass, cut the glass sheets to size. Then, laminate them with plastic. Make polycarbonate sheets that are the same size as the glass, and bond the layers of glass and polycarbonate together.

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Full Answer

  1. Cut the glass

    Cut sheets of glass to the desired dimensions. Ordinary or tempered glass may be used, but tempered glass is more resistant to impacts. Tempered glass causes a bullet to flatten out when it strikes the glass.

  2. Laminate the glass with plastic

    Laminate the glass sheets with plastic. The plastic serves as a base for the resin.

  3. Cut polycarbonate sheets

    Cut the polycarbonate sheets to the same size as the glass sheets. Polycarbonate is a tough, transparent plastic that provides the impact resistance necessary to withstand the bullet. Polycarbonate is also known by brand names such as Lexan, Tuffak, Cyrolon, Armormax and Makroclear. Bullet-resistant glass is designed so that the bullet pierces the outside layer of glass, and the layers of polycarbonate glass absorb the bullet's energy, stopping it before it exits the final layer.

  4. Bond the sheets together

    Bond the sheets of laminated glass and polycarbonate together in alternating layers. Glue the sheets together with a type of ethylene-vinyl acetate, such as polyvinyl butyral or polyurethane. Most bullet-resistant glass is between 7 and 75 millimeters thick. Thicker bullet-resistant glass is known as armored glass. The thicker the bullet-resistant glass is, the stronger its ability to stop a bullet is.

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