S-Plastics Thermocomp Valox_SMV5871 resin is PRELIMINARY DATA. 20% mineral filled PBT. High modulus, dimensionally stable, low warp. Will be VM720.
| MECHANICAL | Value | Unit | Standard |
| Tensile Stress, brk, Type I, 5 mm/min | 55 | MPa | ASTM D 638 |
| Tensile Strain, brk, Type I, 5 mm/min | 2.4 | % | ASTM D 638 |
| Tensile Modulus, 5 mm/min | 4820 | MPa | ASTM D 638 |
| Flexural Stress, brk, 1.3 mm/min, 50 mm span | 99 | MPa | ASTM D 790 |
| Flexural Modulus, 1.3 mm/min, 50 mm span | 4650 | MPa | ASTM D 790 |
| IMPACT | Value | Unit | Standard |
| Izod Impact, unnotched, 23°C | 309 | J/m | ASTM D 4812 |
| Izod Impact, notched, 23°C | 26 | J/m | ASTM D 256 |
| Izod Impact, Reverse Notched, 3.2 mm | 192 | J/m | ASTM D 256 |
| Instrumented Impact Total Energy, 23°C | 5 | J | ASTM D 3763 |
| THERMAL | Value | Unit | Standard |
| HDT, 0.45 MPa, 3.2 mm, unannealed | 193 | °C | ASTM D 648 |
| HDT, 0.45 MPa, 6.4 mm, unannealed | 201 | °C | ASTM D 648 |
| CTE, -40°C to 40°C, flow | 4.68E-05 | 1/°C | ASTM E 831 |
| CTE, -40°C to 40°C, xflow | 5.04E-05 | 1/°C | ASTM E 831 |
| CTE, 60°C to 138°C, flow | 6.12E-05 | 1/°C | ASTM E 831 |
| CTE, 60°C to 138°C, xflow | 8.82E-05 | 1/°C | ASTM E 831 |
| PHYSICAL | Value | Unit | Standard |
| Specific Gravity | 1.48 | - | ASTM D 792 |
| Mold Shrinkage, flow, 3.2 mm | 1.3 - 1.5 | % | S-Plastics Method |
| Mold Shrinkage, xflow, 3.2 mm | 1.2 - 1.4 | % | S-Plastics Method |
| Source GMD, last updated:02/17/2000 | |||
| Parameter | ||
| Injection Molding | Value | Unit |
| Drying Temperature | 120 | °C |
| Drying Time | 3 - 4 | hrs |
| Drying Time (Cumulative) | 12 | hrs |
| Maximum Moisture Content | 0.02 | % |
| Melt Temperature | 255 - 275 | °C |
| Nozzle Temperature | 255 - 270 | °C |
| Front - Zone 3 Temperature | 255 - 265 | °C |
| Middle - Zone 2 Temperature | 250 - 260 | °C |
| Rear - Zone 1 Temperature | 245 - 255 | °C |
| Mold Temperature | 65 - 95 | °C |
| Back Pressure | 0.3 - 0.7 | MPa |
| Screw Speed | 50 - 80 | rpm |
| Shot to Cylinder Size | 40 - 80 | % |
| Vent Depth | 0.025 - 0.038 | mm |
| Source GMD, last updated:02/17/2000 | ||
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For more information please download the datasheet |
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S-Plastics Thermocomp Valox_SMV5871.pdf |
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