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MATERIAL PHYSICAL PROPERTIES
| APPLICABLE | ACRYLIC | GLASS | |
| ASTM | MINIMUM | MINIMUM | |
| PROPERTY | TEST | VALUES* | VALUES** |
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Poisson’s Ratio |
NONE | 0.35 | 0.22 |
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Refractive Index |
D 542 | 1.49 +/- 0.01 | 1.51 +/- 0.01 |
| Water Absorption | D 570 | < 0.25% | Minute Amount |
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Tensile Strength: |
D 638 | ||
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Ultimate Strength |
9,000 psi | 11,200 psi | |
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Elongation At Break |
< 2.0% | N/A | |
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Modulus (Young’s) |
400,000 psi | 10,400,000 psi | |
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Shear Strength |
D 732 | 8,000 psi | 4,300,000 psi |
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Flexural Strength |
D 790 | 14,000 psi | 24,000 psi |
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Rockwell Hardness |
D 785 | M Scale 90 | M Scale 140 |
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Specific Gravity |
D 792 | 1.19 +/- 0.01 | 2.53 +/- 0.01 |
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UV Light Transmittance |
D 308 | < 5.0% | <5.0% |
| Light Transmittance | D 1003 | ||
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Sample Block 0.5” thick |
> 92.0% | > 88.0% | |
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Sample Block 5.0” thick |
> 92.0% | > 82.0% | |
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Sample Block 10.0” thick |
> 92.0% | > 76.0% | |
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Visual Clarity |
D 702 | Must Be Readable | Must Be Readable |
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Deflection Temperature |
D 648 | 1850 F | 8250 F |
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Haze |
D 1003 | < 2.0% | < 2.0% |
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* Minimum values for acrylic are taken from ASME/ANSI PVHO-1. |
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Copyright © 2001. Advanced Acrylic Display & Supply, Inc. All Rights Reserved.
