| About |
|---|
| TASK® 18 is a relatively low viscosity aluminum filled urethane casting resin that was developed specifically for making short run vacuum forming molds. When Parts A and B are mixed in proper proportion, TASK® 18 cures overnight at room temperature with negligible shrinkage to a very hard plastic that has a very high compressive and flexural strength. Cured TASK® 18 can be polished, machined, drilled, painted, etc. TASK® 18 is also used to make industrial production parts, prototype parts and tracing patterns.&& |
| Product Description | |
|---|---|
| Generic | PUR |
| Material Status | Commercial: Active |
| Features | Low Viscosity,Sprayable,Low contractility,Machinable,Good compressive strength |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | casting |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.57 | g/cm³ | ASTM D1475 |
| Specific volume | 0.636 | cm³/g | ASTM D1475 |
| Shrinkage rate | |||
| MD | 0.060 | % | ASTM D2566 |
| Thermosetting mixed viscosity | Nominal value | Unit | Test method |
|---|---|---|---|
| stripping time | |||
| 23℃ | 960 | min |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Mixing ratio | 26A:100B by weight |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s D | 88 | ASTM D2240 | |
| Tensile modulus | 3540 | MPa | ASTM D638 |
| tensile strength | |||
| fracture | 22.4 | MPa | ASTM D638 |
| Tensile strain | |||
| fracture | 1.0 | % | ASTM D638 |
| Bending modulus | 593 | MPa | ASTM D790 |
| bending strength | 73.8 | MPa | ASTM D790 |
| Compression modulus | 671 | MPa | ASTM D695 |
| compressive strength | 58.1 | MPa | ASTM D695 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 65.0 | ℃ | ASTM D648 |
| storage stability | |||
| 23℃ | 20 | min | ASTM D2471 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Cure Time |
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