| Mixing ratio, by volume, part A to B |
1:1 |
 |
| Viscosity, part A, 75° F |
21,000 cps |
|
| Viscosity, part B, 75° F |
22,000 cps |
|
| Maximum bulk curing temperature |
~120° F |
|
| Temperature change in cure phase |
~5-40° F |
|
| Click on the Thumbnail Image for a Chart of RayCrete Curing
Temperature Over Time for a 1 Quart Volume (bulk cure). --> |
 |
|
|
| Working Life
After Mixing |
|
| 75° F |
15 minutes |
|
| 100° F |
2 minutes |
|
| Click on the Thumbnail Image for a Chart of RayCrete Working Life
for Different Temperatures --> |
 |
|
| |
| Cure Schedule at 75° F |
|
|
| 90% maximum strength developed within |
12 hrs |
|
|
| Physical Properties |
|
|
| Compressive strength at 75° F |
>3,000 psi |
|
| Tensile strength at 75° F |
>1,000 psi |
|
| Cured Density |
~1 g/cc |
|
| Shelf life at 75° F |
>1 year |
|
|
| ASTM Properties |
|
| D790-98 Flexure |
2920 psi |
|
| D638 Tensile |
1210 psi |
|
| C695 Compression |
3110 psi |
|
| D1002 Lap Shear (sanded cold rolled steel) |
1500 psi |
|
| D1002 Lap Shear (unsanded cold rolled steel) |
150 psi |
|
| D1002 Lap Shear (aluminum) |
169 psi |
|
| D1002 Lap Shear (wood) |
500 psi |
|
| D2240 Shore Hardness |
70 |
|
|
| Radiation Survivability |
|
| 1200 R/hr for a total exposure of 9x105 Roentgen |
No Degradation |
|
|
| Safety Properties |
|
| Volatile Organic Compounds (VOCs) |
None |
|
| Volatile Inorganic Compounds |
Negligible |
|
| Flammability (Parts A and B) |
Nonflammable |
|
| Environmental PEL for MDI |
Below Detection Limits |
|
| Environmental Respirable Silica Quartz Dust |
Below Detection Limits |
|
|
| Material Safety Data Sheets (MSDS) |
|
| RayCrete Part A |
2004 MSDS (PDF) |
|
| RayCrete Part B |
2004 MSDS (PDF) |
|
| HAZCHEM Code |
1Z |
|
|
| Working Environment |
|
| Environmental Temperature (Working) |
0° F to +200° F |
|
| Environmental Temperature (Storage) |
-110° F to +200° F |
|
| Service Temperature (tested range) |
-110° F to +200° F |
|
|
