| |
Properties
●Excellent long-term resistance to weathering and sunlight
●Excellent optical clarity and light-guide performance
●Impact strength is 10 times higher than that of glass
●Excellent chemicals resistance
●Burned without dense smoke and poison
●Great thermoform ability
Property Comparison of PMMA Sheet with Other Plastic Materials
|
Properties |
Test Method |
PMMA Sheet |
Acrylong |
PC
(No-UV) |
PETG(No-UV) |
PVC |
PS |
|
Refractive Index |
ASTM D-542 |
1.49 |
1.49 |
1.55 |
＜1.52 |
-- |
-- |
|
Specific Gravity |
ASTM D-792 |
1.19 |
1.17 |
1.2 |
1.27 |
1.4 |
1.4 |
|
Weatherability |
-- |
Excellent |
VG |
Medium |
Medium |
Medium |
Poor |
|
Light Transmittance |
ASTM D-1003, % |
92 |
91 |
88 |
87 |
83 |
89 |
|
Light Transmittance (after 10 years of exposure) |
ASTM D-1003, % |
90 |
89 |
Hazy |
Hazy |
72 |
Hazy |
|
Rockwell Hardness |
ASTM D-785, M scale |
95 |
60-80 |
60-70 |
65 |
＜50 |
＜60 |
|
Tensile Strength |
ASTM D-638, kg/cm2 |
720 |
＜480 |
640 |
260 |
480 |
＜400 |
|
Flexural Strength |
ASTM D-790, kg/cm2 |
1,100 |
850 |
920 |
740 |
-- |
-- |
|
Flexural Modulus |
ASTM D-790, kg/cm2 |
32,000 |
24,000 |
23,000 |
22,000 |
-- |
-- |
|
Impact Strength |
ASTM D-256 Kg cm/cm |
1.4 |
4.0 |
72 |
6.5 |
3.0 |
1.4 |
|
Heat Deflection Temperature |
ASTM D-648 oC |
up
to 100 |
94 |
130 |
63 |
65 |
75 |
Reference from Acrylicap.com (www.acrylicap.com) |
