Typical Physical Properties
Test specimens cured at room temperature for two weeks, unless otherwise noted. Typical values; not to be construed as specifications. Neat epoxy specimens (i.e., containing no fillers or fiber reinforcements) were used for testing.
| Property | 105/205 | 105/206 | 105/207 | 105/209 | G/flex |
| Mix Ratio by weight* | 5.07:1 | 5.0:1 | 3.4:1 | 3.56:1 | 1.2:1 |
| Mix Viscosity @ 72°F (cPs) | 975 | 725 | 775 | 650 | 15,000 |
| Pot Life of 100 g @ 72°F (min.) | 12 | 21.5 | 26.4 | 62 | 45 |
| Specific Gravity of Cured Resin | 1.180 | 1.180 | 1.16 | 1.16 | |
| Hardness @ 1 day (Shore D) | 80 | 80 | 78 | 77 | 70 |
| Hardness @ 2 weeks (Shore D) | 83 | 83 | 82 | 82 | 75 |
| Compression Yield @ 1 day (PSI) | 10,120 | 7,990 | 6,014 | 3,835 | |
| Compression Yield @ 2 weeks (PSI) | 11,418 | 11,500 | 10,838 | 11,960 | 5,268 |
| Tensile Strength (PSI) | 7,846 | 7,320 | 7,509 | 7,280 | 3,440 |
| Tensile Elongation (%) | 3.4 | 4.5 | 3.4 | 3.6 | 32.7 |
| Tensile Modulus (PSI) | 4.08E+05 | 4.60E+05 | 4.10E+05 | 3.98E+05 | 1.44E+05 |
| Flexural Strength (PSI) | 14,112 | 11,810 | 13,016 | 12,459 | 5,192 |
| Flexural Modulus (PSI) | 4.61E+05 | 4.50E+05 | 5.14E+05 | 3.97E+05 | 1.56E+05 |
| Heat Deflection Temperature (°F) | 118 | 123 | 118 | 117 | 127 |
| Onset of Tg by DSC (°F) | 129 | 126 | 123 | 122 | 138 |
| Ultimate Tg by DSC (°F) | 142 | 139 | 137 | 130 | 154 |
| Izod Impact, notched (ft-lbs/in) | 0.93 | 0.54 | 1.27 | 1.33 | 1.28 |
Typical values; not to be construed as specifications. Neat
epoxy specimens, i.e., containing no fillers or fiber reinforcements, were used for
testing.
* Actual Ratio Dispensed by Calibrated WEST SYSTEM®
Minipumps.
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reserved. This page is maintained by Gougeon Brothers, Inc. Last Modified on Tuesday, September 25, 2007 . WEST SYSTEM and EPOXYWORKS are registered trademarks of Gougeon Brothers, Inc. Bay City, Michigan, USA. |