POLYSTYRENE IMPACT 7240 is a water insoluble, very high impact polystyrene grade. It can be processed using extrusion. Also, it can be diluted with crystal polystyrene such as POLYSTYRENE CRYSTAL 1160, 1340, 1540 at high levels to obtain stiff and impact resistant multilayer sheet for thermoformed packaging. Applications include trays & small boxes, corrugated sheets, technical parts, compounds & masterbatches, food & beverage packaging, appliances, general packaging, healthcare products, TV, foam articles, dairy sheet for form-fill-seal, individual dairy pots, cups, food trays, eggs boxes and disposables. Incompatible with strong acids, strong bases, strong oxidizing agents and halogens.
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POLYSTYRENE IMPACT 7240 properties
Electrical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Dielectric Strength | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Surface Resistivity | 0.0 Visible After Login | Visible After Login | Visible After Login |
Flammability properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Auto-ignition Temperature | 0.0 Visible After Login | Visible After Login | Visible After Login |
Mechanical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Elongation at Break | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Flexural Modulus | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Hardness, Rockwell M | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Impact Strength, Notched Charpy | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Impact Strength, Notched Izod | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Modulus of Elasticity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Strength at Break | 0.0 Visible After Login | Visible After Login | Visible After Login |
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Density, Bulk | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Strength at Yield | 0.0 Visible After Login | Visible After Login | Visible After Login |
Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Density | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Linear Mold Shrinkage | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Water Absorption | 0.0 Visible After Login | Visible After Login | Visible After Login |
Thermal properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| CTE, Linear, Parallel to Flow | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Decomposition Temperature | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Heat Deflection Temperature (HDT), Annealed | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Heat Deflection Temperature (HDT), Unannealed | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Vicat Softening Temperature | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Vicat Softening Temperature | 0.0 Visible After Login | Visible After Login | Visible After Login |






