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LNP (SABIC Innovative Plastics) VALOX® SMV5871 Polybutylene Terephthalate, 20% Mineral Filler

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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 VM720.

  • Features: Low Warpage, Good Dimensional Stability, High Strength
  • Forms: Pellets
  • Processing Method: Injection Molding
Information provided by LNP, a GE Plastics Company.

Physical PropertiesMetricEnglishComments
Specific Gravity1.48 g/cc0.0535 lb/in³ ASTM D792
Linear Mold Shrinkage0.013 - 0.015 cm/cm0.013 - 0.015 in/in 3.18 mm; ASTM D955
Linear Mold Shrinkage, Transverse0.012 - 0.014 cm/cm0.012 - 0.014 in/in 3.18 mm; ASTM D955

Mechanical Properties
Tensile Strength at Break55.2 MPa8010 psi Type I, 5 mm/min; ASTM D638
Elongation at Break2.4 %2.4 % Type I, 5 mm/min; ASTM D638
Tensile Modulus4.83 GPa701 ksi 5 mm/min; ASTM D638
Flexural Modulus4.65 GPa674 ksi (50.8 mm Span) 1mm/min; ASTM D790
Flexural Strength100 MPa14500 psi at Break, (50.8 mm Span) 1mm/min; ASTM D790
Izod Impact, Notched0.267 J/cm0.5 ft-lb/in ASTM D256
Izod Impact, Notched1.9 J/cm3.56 ft-lb/in Reverse; ASTM D256
Izod Impact, Unnotched3.1 J/cm5.81 ft-lb/in ASTM D256
Falling Dart Impact5.08 J3.75 ft-lb ASTM D3763

Thermal Properties
CTE, linear 20°C47 µm/m-°C26.1 µin/in-°F  -40 to 38°C; ASTM D696
CTE, linear 20°C61 µm/m-°C33.9 µin/in-°F 60 to 138°C; ASTM D696
CTE, linear 20°C Transverse to Flow50 µm/m-°C27.8 µin/in-°F  -40 to 38°C; ASTM D696
CTE, linear 20°C Transverse to Flow88 µm/m-°C48.9 µin/in-°F 60 to 138°C; ASTM D696
Deflection Temperature at 0.46 MPa (66 psi)193 °C379 °F Unannealed (3.18 mm); ASTM D648
Deflection Temperature at 0.46 MPa (66 psi)202 °C396 °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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