| About |
|---|
| GS-025 is a High Molecular Weight certified prime grade specially developed for use in foamed sheet extrusion for packaging applications. GS-025 is designed for injection molding and extrusion applications requiring high tensile strength, high heat resistance and high stiffness. GS-025 offers good-flow processability, good dimensional stability and excellent clarity of molded articles. GS-025 complies with FDA regulation 21CFR 177.1640 and with most international regulations concerning the use of Polystyrene in contact with food articles.&& |
| Product Description | |
|---|---|
| Generic | PS (GPPS) |
| Material Status | Commercial: Active |
| Features | Good Rigidity,Good Clarity,Good Dimensional Stability,Good liquidity,Foaming performance,Food contact compliance,High Heat Resistance,High molecular weight,Good Tensile Strength |
| Availabilitys | North America |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.05 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 200℃，5.0kg | 2.5 | g/10min | ASTM D1238 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 3.2mm, injection molded | 11 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 98.0 | ℃ | ASTM D648 |
| Vicat Softening Temp | 107 | ℃ | ASTM D1525 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | |||
| R-level | 105 | ASTM D785 | |
| Tensile modulus | 3310 | MPa | ASTM D638 |
| tensile strength | |||
| yield | 53.8 | MPa | ASTM D638 |
| Tensile strain | |||
| fracture | 1.3 | % | ASTM D638 |
| Bending modulus | |||
| 1% secant | 3600 | MPa | ASTM D790 |
| bending strength | |||
| 23 ℃, injection molding | 179 | MPa | ASTM D790 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 2.0 in/min |
| 3. 0.051 in/min |
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