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SABIC Innovative Plastics VALOX 311 PBT (North America)
Subcategory: Polybutylene Terephthalate (PBT); Polyester, TP; Polymer; Thermoplastic
Close Analogs: Saudi Basic Industries Corporation (SABIC) announced on August 31st, 2007, the completion of its purchase of GE Plastics.
Material Notes:
Information provided by GE Plastics for their North American product line.
| Physical Properties | Original Value | Comments | ||
| ||||
| Density | 1.31 g/cc | ASTM D 792 | ||
| Water Absorption | 0.08 % | 24 hours @ 73F; ASTM D 570 | ||
| Linear Mold Shrinkage | 0.009 - 0.016 cm/cm | Flow, 30-90 mil; ASTM D 955 | ||
| Linear Mold Shrinkage | 0.015 - 0.023 cm/cm | Flow, 90-180 mil; ASTM D 955 | ||
| Linear Mold Shrinkage, Transverse | 0.01 - 0.017 cm/cm | 30-90 mil; ASTM D 955 | ||
| Linear Mold Shrinkage, Transverse | 0.016 - 0.024 cm/cm | 90-180 mil; ASTM D 955 | ||
Mechanical Properties | ||||
| ||||
| Hardness, Rockwell R | 117 | ASTM D 785 | ||
| Tensile Strength @ Yield | 7500 psi | Type I, 2.0 in/min; ASTM D 638 | ||
| Elongation at Break | 300 % | Type I, 2.0 in/min; ASTM D 638 | ||
| Flexural Modulus | 340000 psi | 0.05 in/min, 2" span; ASTM D 790 | ||
| Flexural Yield Strength | 12000 psi | 0.05 in/min, 2" span; ASTM D 790 | ||
| Izod Impact, Unnotched | 30 ft-lb/in | 73F; ASTM D 4812 | ||
| Gardner Impact | 30 ft-lb | Modified Gardner, 73F; ASTM D 3029 | ||
| Izod Impact, Notched | 1 ft-lb/in | 73F; ASTM D 256 | ||
Electrical Properties | ||||
| ||||
| Volume Resistivity | Min 4e+016 ohm-cm | ASTM D 257 | ||
| Dielectric Constant | 3.1 | 1 MHz; ASTM D 150 | ||
| Dielectric Constant | 3.3 | 100 Hz; ASTM D 150 | ||
| Dielectric Strength | 400 V/mil | in air, 125 mils; ASTM D 149 | ||
| Dielectric Strength | 590 V/mil | in oil, 62 mils; ASTM D 149 | ||
| Dissipation Factor | 0.002 | 100 Hz; ASTM D 150 | ||
| Dissipation Factor | 0.02 | 1 MHz; ASTM D 150 | ||
Thermal Properties | ||||
| ||||
| CTE, linear 68°F | 45 µin/in-°F | Flow, -40F to 100F; ASTM E 831 | ||
| CTE, linear, 212°F (100°C) | 77 µin/in-°F | Flow, 140F to 280F; ASTM E 831 | ||
| Deflection Temperature at 0.46 MPa (66 psi) | 310 °F | 0.250 inch, unannealed; ASTM D 648 | ||
| Deflection Temperature at 1.8 MPa (264 psi) | 130 °F | 0.250 inch, unannealed; ASTM D 648 | ||
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