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Acrylic versus glass

The displays for low-end mobile phones are almost always made of scratch-resistant acrylic. In High-end phones, like the iPhone, the display is made of hardened glass. The glass makes the phones expensive, heavy and fragile. If dropped on the floor there is big risk that the glass cracks (try googling "iphone glass"). That’s rarely happens with acrylic displays. But the iPhone's display is much harder to score.
Acrylic compared with glass:
  • Weight
    Acrylic weighs less than half that of glass.
  • Impact resistance
    Acrylic is many times stronger than glass and thus more resistant to strokes (10-20 times). When acrylic shatter, it is, in contrast to glass, in large pieces with relative blunt edges. At the same time contribute the low weight to make acrylic much safer.
  • Insulation
    Acrylic insulates better than glass, and is used heavily in skylights and doors to coolers.
  • Manufacturing
    Molding and extrusion of glass items are more expensive and requires much more energy.
  • Machining
    Glass can not be easily processed by sawing, milling and bending. Moreover, it is a lot more difficult be form after heating.
  • Scratch resistance
    Glass is harder to scratch. Acrylic sheets can be supplied with a scratch-resistant coating (hardcoating) which provides extra protection. While scratch-resistant acrylic are not nearly as scratch-resistant as glass. Small scratches in acrylic can be polished. Scratched glass most be replaced.
  • Light transmittance
    Glass has 90% light transmission, for acrylic it is 92%.
  • Gloss
    Acrylic provides a softer reflection of light. Station glass and acrylic opposite each other and one is seldom in doubt about what is what. Acrylic with glass look is acrylic added a bit of color so that it even more looks like glass.
  • UV light
    Standard acrylic allow as opposed to glass UV light to pass. Acrylic sheets can also be delivered with a UV filter.    
  Processing
Machining
  Laser cutting
  Bonding
  Bending
  Polishing
  Engraving
  Thermoforming
   
  Properties
  The use of Acrylic
  Production of sheets and profiles
  Cast versus extruded acrylic
  Chemical resistance
  Structural properties
  Dimensional stability
  Cleaning
  Fire
  Temperature
  Tension and notch
  Printing on acrylic
  Acrylic versus glass
  Acrylic versus polycarbonate
  Trade names for acrylic
  Environmental impacts of acrylics

   
  Q&A
  how do I get acrylic items cheaply?
  What is tolerance?
  Where can acrylic be bought?
  Production of acrylic parts in China?
  Can individuals buy acrylic from Induflex?
  How big is the heat expansion of acrylic?

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