| About |
|---|
| Type: Isoplast® 302EZ is an engineering thermoplastic polyurethane resin. Features: NSF Standard 61 Certified&& |
| Product Description | |
|---|---|
| Supplier | Lubrizol Advanced Materials |
| Generic | E-TPU |
| Material Status | Commercial: Active |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.20 | g/cm³ | ASTM D792 |
| Shrinkage rate | |||
| MD | 0.40 to 0.60 | % | ASTM D955 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | ASTM D256 | ||
| -40℃，3.2mm | 59 | J/m | ASTM D256 |
| 23℃，3.2mm | 110 | J/m | ASTM D256 |
| Dart impact equipped with measuring instruments | |||
| 23℃，Total Energy | 68.0 | J | ASTM D3763 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | ASTM D648 | ||
| 0.45 MPa, unannealed | 132 | ℃ | ASTM D648 |
| 0.45 MPa, annealed | 143 | ℃ | ASTM D648 |
| 1.8 MPa, unannealed | 116 | ℃ | ASTM D648 |
| 1.8 MPa, annealed | 138 | ℃ | ASTM D648 |
| Vicat Softening Temp | 147 | ℃ | ASTM D1525 |
| Linear coefficient of thermal expansion | |||
| MD | 5.8E-5 | 1/℃ | ASTM D696 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Transmittance | 88.0 | % | ASTM D1003 |
| Yellowness index | 40 | YI | ASTM D1925 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | ASTM D785 | ||
| M-level | 92 | ASTM D785 | |
| R-level | 124 | ASTM D785 | |
| Tensile modulus | 1900 | MPa | ASTM D638 |
| tensile strength | ASTM D638 | ||
| yield | 83.0 | MPa | ASTM D638 |
| fracture | 69.0 | MPa | ASTM D638 |
| Tensile strain | ASTM D638 | ||
| yield | 9.0 | % | ASTM D638 |
| fracture | 30 | % | ASTM D638 |
| Bending modulus | 2300 | MPa | ASTM D790 |
| bending strength | 97.0 | MPa | ASTM D790 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 127 to 138 | °C | |
| Processing (melt) temperature | 238 to 260 | °C | |
| Mold temperature | 93 to 121 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
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