Acrylic VS. Polycarbonate: a quantitative and qualitative comparison
Acrylic often compared to Polycarbonate, which is another transparent plastic, that is sometimes used for bearing loads. Polycarbonate is sometimes called Lexan®, which is a trademark by GE Plastics. An other popular brand name for Polycarbonate is Makrolon®, owned by Bayer. Acrylic on the other hand is often called Plexiglas. Plexiglas ® is a trademark by Roehm and Hass.
Popular Uses for Acrylic (Plexiglas):
Popular Uses for Polycarbonate (Lexan):
Key characteristics, Acrylic compared to Polycarbonate:
Key characteristics, Polycarbonate compared to Acrylic:
Popular Uses for Acrylic (Plexiglas):
Popular Uses for Polycarbonate (Lexan):
Key characteristics, Acrylic compared to Polycarbonate:
Key characteristics, Polycarbonate compared to Acrylic:
Polycarbonate – Lexan
|
Acrylic – Plexiglas GS
| ||
Density
|
g/cm³
|
1.2
|
1.19
|
Max weight gain during immersion
|
%
|
0.35
|
2.1
|
Tensile strength σΜ at 23°C
|
MPa
|
60-70
|
80
|
Flexural strength σbB
|
MPa
|
90
|
115
|
Impact strength acU (Charpy)
|
kJ/m2
|
35
|
15
|
Flexural strength σbB
|
MPa
|
90
|
115
|
Optical Light Transmission
|
%
|
89
|
92
|
Forming Temperature
|
°C
|
185…205
|
160…175
|
Vicat B Temperature
|
°C
|
145
|
115
|
Velocity of Sound
|
m/min
|
2270
|
2750
|
Attenuation at 5MHz
|
dB/cm
|
24.9
|
6.4
|
Fire Rating
|
German DIN 4102
|
B2
|
B2 (*2)
|
· Motorcycle helmet visors
· Helicopter Windows, Submarine Windows
· Spectator protection in ice hockey
· Police riot control vehicles modifications
· Aquariums and Terariums (including large public aquarium walls and tunnels)
· Compact discs, DVDs
· Lighting lenses, sun-glass/eyeglass lenses, safety glasses, automotive headlamp lenses, camper windows
· Drinking bottles
· Computers: Apple, Inc.’s MacBook, iMac, and Mac mini
· Cases
· Riot shields, visors
· Instrument panels
· Bullet-proof Glass
·
· More likely to chip
· less impact resistance then Polycarbonate, but still 10-24 times more resistant than float glass
· more resistant against evenly distributed loads then Polycarbonate
· Less likely to scratch.
· Does NOT yellow after time.
· Better clarity. Acrylic can be restored to optical clarity by polishing.
· Impact/chip resistance is much higher with Polycarbonate. (about 30 times more resistant than glass)
· More likely to scratch.
· Substantially more expensive. (roughly 2 to 3 times)
· Used for more industry applications
· Bulletproof when thick enough.
· More bendable under normal temperatures (0-20°C)
· Yellows over time due to ultraviolet rays
· Easier to work with (cut, less likely to break)
· Poorer clarity, diffuses light
More information, please contact Yanley
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