S-Plastics Valox 215HPR resin is Unreinforced PBT with mold release. FDA food contact compliant in limited colors. Effective March 2008 this grade will no longer be supported with biocompatibility data. Alternative grade Valox HX215HP.
| MECHANICAL | Value | Unit | Standard |
| Tensile Stress, yld, Type I, 50 mm/min | 51 | MPa | ASTM D 638 |
| Tensile Strain, brk, Type I, 50 mm/min | 10 | % | ASTM D 638 |
| Flexural Stress, yld, 1.3 mm/min, 50 mm span | 82 | MPa | ASTM D 790 |
| Flexural Modulus, 1.3 mm/min, 50 mm span | 2340 | MPa | ASTM D 790 |
| IMPACT | Value | Unit | Standard |
| Izod Impact, unnotched, 23°C | 1602 | J/m | ASTM D 4812 |
| Izod Impact, notched, 23°C | 53 | J/m | ASTM D 256 |
| Modified Gardner, 23°C | 40 | J | ASTM D 3029 |
| THERMAL | Value | Unit | Standard |
| HDT, 0.45 MPa, 6.4 mm, unannealed | 154 | °C | ASTM D 648 |
| HDT, 1.82 MPa, 6.4 mm, unannealed | 54 | °C | ASTM D 648 |
| CTE, -40°C to 40°C, flow | 8.1E-05 | 1/°C | ASTM E 831 |
| CTE, 60°C to 138°C, flow | 1.39E-04 | 1/°C | ASTM E 831 |
| PHYSICAL | Value | Unit | Standard |
| Specific Gravity | 1.31 | - | ASTM D 792 |
| Specific Volume | 0.76 | cm³/g | ASTM D 792 |
| Water Absorption, 24 hours | 0.08 | % | ASTM D 570 |
| Mold Shrinkage, flow, 0.75-2.3 mm | 0.9 - 1.6 | % | S-Plastics Method |
| Mold Shrinkage, flow, 2.3-4.6 mm | 1.5 - 2.3 | % | S-Plastics Method |
| Mold Shrinkage, xflow, 0.75-2.3 mm | 1 - 1.7 | % | S-Plastics Method |
| Mold Shrinkage, xflow, 2.3-4.6 mm | 1.6 - 2.4 | % | S-Plastics Method |
| Melt Viscosity | 100 | Pa-s | S-Plastics Method |
| Source GMD, last updated:02/27/2008 | |||
| 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:02/27/2008 | ||
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For more information please download the datasheet |
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S-Plastics Valox 215HPR.pdf |
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