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LNP (SABIC Innovative Plastics) VALOX® SMV5837 Polybutylene Terephthalate, 20% Glass Bead Reinforcement

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Subcategory: Filled/Reinforced Thermoplastic; 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:
Will be VGB5820.

  • Forms: Pellets
  • Processing Method: Injection Molding
Information provided by LNP, a GE Plastics Company.

Physical PropertiesMetricEnglishComments
Specific Gravity1.46 g/cc0.0527 lb/in³ ASTM D792
Linear Mold Shrinkage0.016 - 0.019 cm/cm0.016 - 0.019 in/in 3.18 mm; ASTM D955
Linear Mold Shrinkage, Transverse0.018 - 0.02 cm/cm0.018 - 0.02 in/in 3.18 mm; ASTM D955

Mechanical Properties
Tensile Strength at Break40.7 MPa5900 psi Type I, 5 mm/min; ASTM D638
Tensile Strength at Break48.3 MPa7010 psi Type I, 50 mm/min; ASTM D638
Tensile Strength, Yield46.9 MPa6800 psi Type I, 5 mm/min; ASTM D638
Tensile Strength, Yield51.7 MPa7500 psi Type I, 50 mm/min; ASTM D638
Elongation at Break16 %16 % Type I, 5 mm/min; ASTM D638
Flexural Modulus3.21 GPa466 ksi (50.8 mm Span) 1mm/min; ASTM D790
Flexural Yield Strength93.1 MPa13500 psi (50.8 mm Span) 1mm/min; ASTM D790
Izod Impact, Notched0.32 J/cm0.599 ft-lb/in ASTM D256
Izod Impact, Notched3.6 J/cm6.74 ft-lb/in Reverse; ASTM D256
Izod Impact, Unnotched5.34 J/cm10 ft-lb/in ASTM D256

Thermal Properties
CTE, linear 20°C140 µm/m-°C77.8 µin/in-°F 60°C to 138°C; ASTM D696
CTE, linear 20°C65 µm/m-°C36.1 µin/in-°F  -40°C to 38°C; ASTM D696
CTE, linear 20°C Transverse to Flow150 µm/m-°C83.3 µin/in-°F 60°C to 138°C; ASTM D696
CTE, linear 20°C Transverse to Flow68 µm/m-°C37.8 µin/in-°F  -40°C to 38°C; ASTM D696
Deflection Temperature at 1.8 MPa (264 psi)70 °C158 °F Unannealed (6.35 mm); ASTM D648

Processing Properties
Rear Barrel Temperature243 - 254 °C469 - 489 °F 
Middle Barrel Temperature249 - 260 °C480 - 500 °F 
Front Barrel Temperature254 - 266 °C489 - 511 °F 
Nozzle Temperature254 - 271 °C489 - 520 °F 
Melt Temperature254 - 277 °C489 - 531 °F 
Mold Temperature65.6 - 93.3 °C150 - 200 °F 
Drying Temperature121 °C250 °F 
Dry Time3 - 12 hour3 - 12 hour 
Moisture Content0.02 %0.02 % Suggested
Back Pressure0.345 - 0.689 MPa50 - 99.9 psi 
Clamp Pressure41 - 83 MPa5950 - 12000 psi 
Shot Size40 - 80 %40 - 80 % Suggested
Vent Depth0.0025 - 0.0038 cm0.000984 - 0.0015 in 
Screw Speed50 - 80 rpm50 - 80 rpm 
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