Witcom PES BG

Category: PESU , Polyethersulfone
Manufacturer: Witcom Engineering Plastics B.V.
Trademark: Witcom PES
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: RH5V62_Witcom-PES-BG.pdf
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Bearing grade
General Information
Uses
  • Bearing
Processing Method
  • Injection molding
PhysicalNominal ValueUnitTest Method
Density 1.52g/cm³ISO 1183
Molding Shrinkage - Flow (3.00 mm)0.20 - 0.40%ISO 2577
Water Absorption ISO 62
    Saturated, 23°C 1.6%ISO 62
    Equilibrium, 23°C, 50% RH 0.50%ISO 62
MechanicalNominal ValueUnitTest Method
Tensile Stress (Yield)< 110MPaISO 527-2
Tensile Strain (Break)1.0 - 3.0%ISO 527-2
Flexural Modulus 7000MPaISO 178
Flexural Stress 140MPaISO 178
ImpactNominal ValueUnitTest Method
Notched Izod Impact 5.5kJ/m²ISO 180/1A
Unnotched Izod Impact Strength 16kJ/m²ISO 180/1U
ThermalNominal ValueUnitTest Method
Heat Deflection Temperature (1.8 MPa, Unannealed)210°CISO 75-2/A
CLTE - Flow 2.4E-5cm/cm/°CISO 11359-2
RTI Imp (3.00 mm)180°CUL 746
ElectricalNominal ValueUnitTest Method
Surface Resistivity 1.0E+4 - 1.0E+6ohmsASTM D257
FlammabilityNominal ValueUnitTest Method
Flame Rating (3.00 mm)V-0ISO 1210
Glow Wire Flammability Index (1.60 mm)960°CIEC 60695-2-12
InjectionNominal ValueUnit
Drying Temperature 130 - 160°C
Drying Time 4.0 - 6.0hr
Suggested Max Moisture 0.020%
Processing (Melt) Temp 350 - 390°C
Mold Temperature 150 - 190°C
Injection Rate Fast
Back Pressure 0.00 - 1.00MPa
Injection instructions
Screw speed: 0.1 - 0.2 m/sInjection pressure: Keep to a minimumHold pressure: Keep to a minimum
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