Ultradur® B 2550 FC

Category: PBT , Polybutylene Terephthalate
Manufacturer: BASF Corporation
Trademark: Ultradur®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: Dir7Io_Ultradur-B-2550-FC.pdf
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Message
Ultradur B 2550 FC is an unfilled, easy flow PBT offering good heat resistance. This grade is a food contact grade.

Applications
Applications include monofilament, bristles and heat-resistant coatings on paper and board used for packaging frozen foods and oven-ready meals. Also for injection molding applications that call for high flowability.
General Information
Features
  • Good liquidity
  • Heat resistance, medium
  • Compliance of Food Exposure
Uses
  • monofilament
  • Food packaging
  • Paper coating
Agency Ratings
  • EC 1907/2006 (REACH)
RoHS Compliance
  • RoHS compliance
Processing Method
  • Extrusion
  • Injection molding
PhysicalNominal ValueUnitTest Method
Density 1.30g/cm³ISO 1183
Melt Volume-Flow Rate (MVR) (250°C/2.16 kg)40.0cm³/10minISO 1133
Viscosity Number (Reduced Viscosity) 107.0ml/gISO 1628
HardnessNominal ValueUnitTest Method
Ball Indentation Hardness 130MPaISO 2039-1
MechanicalNominal ValueUnitTest Method
Tensile Modulus (23°C)2500MPaISO 527-2
Tensile Stress (Yield, 23°C)57.0MPaISO 527-2
Tensile Strain (Yield, 23°C)3.7%ISO 527-2
Nominal Tensile Strain at Break (23°C)35%ISO 527-2
Tensile Creep Modulus (1000 hr)1100MPaISO 899-1
ImpactNominal ValueUnitTest Method
Charpy Notched Impact Strength (23°C)6.0kJ/m²ISO 179
Charpy Unnotched Impact Strength (23°C)250kJ/m²ISO 179
ThermalNominal ValueUnitTest Method
Heat Deflection Temperature (1.8 MPa, Unannealed)65.0°CISO 75-2/A
Melting Temperature (DSC) 223°CISO 3146
ElectricalNominal ValueUnitTest Method
Surface Resistivity 1.0E+13ohmsIEC 60093
Volume Resistivity 1.0E+14ohms·cmIEC 60093
Dielectric Constant IEC 60250
    100 Hz 3.30IEC 60250
    1 MHz 3.30IEC 60250
Dissipation Factor IEC 60250
    100 Hz 1.3E-3IEC 60250
    1 MHz 0.020IEC 60250
Comparative Tracking Index 500VIEC 60112
FlammabilityNominal ValueUnitTest Method
Flame Rating (1.50 mm)HBUL 94
ExtrusionNominal ValueUnit
Drying Temperature 100 - 120°C
Drying Time 4.0hr
Suggested Max Moisture 0.040%
Cylinder Zone 1 Temp. 260 - 265°C
Cylinder Zone 2 Temp. 265 - 275°C
Cylinder Zone 3 Temp. 260 - 270°C
Cylinder Zone 4 Temp. 255 - 265°C
Melt Temperature 260 - 270°C
Head Temperature 260 - 270°C
Extruder Screw L/D Ratio >25.0:1.0
Extruder Screw Compression Ratio 3.5:1.0 to 4.0:1.0
Die Temperature 260 - 270°C
Extrusion instructions
Pump: 260-270 degC (500-518 degF)Recommended Screw: Three section screw: 6D/7D/9D + 3DWater Bath Temperature: 45-60 degC (113-140 degF)
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