ONE WAY GLASS By:Marcos Muniz

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ONE WAY GLASSByMarcos Muniz
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What is it?

• Unidirectional Armor
• Allows return fire through the glass while
  protecting from hostile fire
• Also available for stationary buildings

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What is it made of?

• A series of
• polycarbonate
• acrylic
• glass layers merged in a special manufacturing
  process
• Held together by a proprietary compounds of
  special glue or resin compounds

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Benefits

• Lighter
• small cross section profile
• extremely low distortion
• clarity level of up to 90

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How does it work

• PROTECTIVE SIDE
• When bullet strikes the acrylic outer layer, it
  compresses, strengthens, and absorbs/distributes
  the energy.
• The polycarbonate layer stretches as it
  dissipates the remaining bullet energy with no
  full penetration
• Spider webbing occurs on impact side, but inside
  glass remains undamaged
• ONE WAY SIDE
• Polycarbonate material compresses, acrylic
  stretches
• Bullet passes through soft polycarbonate layer
  and into acrylic layer which weakens as it
  stretches
• Bullet shatters acrylic, continuing with no loss
  of velocity or deflection

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References

• www.labock.com/english/bpg_oneway.html
• www.usbulletproofing.com/Ratings.html
• www.howstuffworks.com
• Callister, William D. Fundamentals of Materials
  Science and Engineering An Integrated Approach
  2nd Ed. Wiley and Sons 2004