S-Plastics Valox EXVX1276 resin Unfilled PBT with Imroved Fuel Resistance
| MECHANICAL | Value | Unit | Standard |
| Tensile Stress, yld, Type I, 50 mm/min | 52 | MPa | ASTM D 638 |
| Tensile Stress, brk, Type I, 50 mm/min | 40 | MPa | ASTM D 638 |
| Tensile Strain, yld, Type I, 50 mm/min | 3 | % | ASTM D 638 |
| Tensile Strain, brk, Type I, 50 mm/min | 170 | % | ASTM D 638 |
| Tensile Modulus, 5 mm/min | 3050 | MPa | ASTM D 638 |
| Flexural Stress, yld, 1.3 mm/min, 50 mm span | 90 | MPa | ASTM D 790 |
| Flexural Modulus, 1.3 mm/min, 50 mm span | 2500 | MPa | ASTM D 790 |
| Tensile Stress, yield, 50 mm/min | 57 | MPa | ISO 527 |
| Tensile Stress, break, 50 mm/min | 45 | MPa | ISO 527 |
| Tensile Strain, yield, 50 mm/min | 58 | % | ISO 527 |
| Tensile Strain, break, 50 mm/min | 50 | % | ISO 527 |
| Tensile Modulus, 1 mm/min | 2700 | MPa | ISO 527 |
| Flexural Stress, yield, 2 mm/min | 80 | MPa | ISO 178 |
| Flexural Modulus, 2 mm/min | 2200 | MPa | ISO 178 |
| IMPACT | Value | Unit | Standard |
| Izod Impact, notched, 23°C | 36 | J/m | ASTM D 256 |
| Izod Impact, notched, -30°C | 34 | J/m | ASTM D 256 |
| Instrumented Impact Total Energy, 23°C | 48 | J | ASTM D 3763 |
| Izod Impact, notched 80*10*4 +23°C | 3 | kJ/m² | ISO 180/1A |
| Izod Impact, notched 80*10*4 -30°C | 3 | kJ/m² | ISO 180/1A |
| Charpy 23°C, V-notch Edgew 80*10*4 sp=62mm | 3 | kJ/m² | ISO 179/1eA |
| THERMAL | Value | Unit | Standard |
| Vicat Softening Temp, Rate B/50 | 175 | °C | ASTM D 1525 |
| HDT, 1.82 MPa, 3.2mm, unannealed | 53 | °C | ASTM D 648 |
| CTE, -40°C to 40°C, flow | 1.2E-04 | 1/°C | ASTM E 831 |
| CTE, -40°C to 40°C, xflow | 1.2E-04 | 1/°C | ASTM E 831 |
| CTE, -40°C to 40°C, flow | 1.2E-04 | 1/°C | ISO 11359-2 |
| CTE, -40°C to 40°C, xflow | 1.2E-04 | 1/°C | ISO 11359-2 |
| Vicat Softening Temp, Rate B/50 | 175 | °C | ISO 306 |
| Vicat Softening Temp, Rate B/120 | 175 | °C | ISO 306 |
| HDT/Af, 1.8 MPa Flatw 80*10*4 sp=64mm | 46 | °C | ISO 75/Af |
| PHYSICAL | Value | Unit | Standard |
| Specific Gravity | 1.31 | - | ASTM D 792 |
| Mold Shrinkage, flow, 3.2 mm | 2.2 - 2.6 | % | S-Plastics Method |
| Melt Flow Rate, 250°C/2.16 kgf | 55 | g/10 min | ASTM D 1238 |
| Density | 1.31 | g/cm³ | ISO 1183 |
| Water Absorption, (23°C/sat) | 0.5 | % | ISO 62 |
| Moisture Absorption (23°C / 50% RH) | 0.07 | % | ISO 62 |
| Melt Volume Rate, MVR at 250°C/2.16 kg | 50 | cm³/10 min | ISO 1133 |
| Source GMD, last updated:12/04/2007 | |||
| Parameter | ||
| Injection Molding | Value | Unit |
| Drying Temperature | 75 - 95 | °C |
| Drying Time | 3 - 4 | hrs |
| Drying Time (Cumulative) | 6 | 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:12/04/2007 | ||
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For more information please download the datasheet |
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S-Plastics Valox EXVX1276.pdf |
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