S-Plastics Valox 337resin is Low temperature impact PBT. Automotive applications: underhood power distribution boxes and covers.
| MECHANICAL | Value | Unit | Standard |
| Tensile Stress, yld, Type I, 50 mm/min | 39 | MPa | ASTM D 638 |
| Tensile Strain, yld, Type I, 50 mm/min | 3.9 | % | ASTM D 638 |
| Flexural Stress, yld, 1.3 mm/min, 50 mm span | 56 | MPa | ASTM D 790 |
| Flexural Modulus, 1.3 mm/min, 50 mm span | 1790 | MPa | ASTM D 790 |
| IMPACT | Value | Unit | Standard |
| Izod Impact, unnotched, 23°C | 3204 | J/m | ASTM D 4812 |
| Izod Impact, unnotched, -30°C | 3204 | J/m | ASTM D 4812 |
| Izod Impact, notched, 23°C | 870 | J/m | ASTM D 256 |
| Izod Impact, notched, -30°C | 801 | J/m | ASTM D 256 |
| THERMAL | Value | Unit | Standard |
| HDT, 0.45 MPa, 6.4 mm, unannealed | 98 | °C | ASTM D 648 |
| HDT, 1.82 MPa, 6.4 mm, unannealed | 47 | °C | ASTM D 648 |
| PHYSICAL | Value | Unit | Standard |
| Specific Gravity | 1.22 | - | ASTM D 792 |
| Water Absorption, 24 hours | 0.1 | % | ASTM D 570 |
| Mold Shrinkage, flow, 3.2 mm | 2.4 - 2.7 | % | S-Plastics Method |
| Mold Shrinkage, xflow, 3.2 mm | 2.4 - 2.7 | % | S-Plastics Method |
| Melt Flow Rate, 250°C/5.0 kgf | 12.7 | g/10 min | ASTM D 1238 |
| Melt Viscosity | 1200 | Pa-s | S-Plastics Method |
| Source GMD, last updated:01/05/2000 | |||
| 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 | 245 - 260 | °C |
| Nozzle Temperature | 240 - 255 | °C |
| Front - Zone 3 Temperature | 245 - 260 | °C |
| Middle - Zone 2 Temperature | 240 - 255 | °C |
| Rear - Zone 1 Temperature | 230 - 250 | °C |
| Mold Temperature | 50 - 75 | °C |
| Back Pressure | 0.3 - 0.7 | MPa |
| Screw Speed | 50 - 100 | rpm |
| Shot to Cylinder Size | 40 - 80 | % |
| Vent Depth | 0.013 - 0.025 | mm |
| Source GMD, last updated:01/05/2000 | ||
For more information please download the datasheet | |
| S-Plastics Valox 337.pdf | |
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