Edistir® SR 550

Category: PS (HIPS) , High Impact Polystyrene
Manufacturer: Versalis S.p.A.
Trademark: Edistir®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: QY5xrr_Edistir-SR-550.pdf
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High impact, easy flow polystyrene with good elasticity at low temperatures.

Suitable for injection moulding of large or complex parts with low thickness and high impact strength.

Designation: Thermoplastics ISO 2897-PS-I,M,O83-12-07-18

Applications
Toys, housewares, technical items.
General Information
Features
  • High elasticity
  • Impact resistance, high
  • Good liquidity
  • Compliance of Food Exposure
Uses
  • Thin wall parts
  • Electrical/Electronic Applications
  • Household goods
  • Toys
Agency Ratings
  • Europe No 10/2011
UL File Number
  • E83071
Appearance
  • Natural color
Forms
  • Particle
Processing Method
  • Injection molding
Multi-Point Data
  • Isothermal Stress vs. Strain (ISO 11403-1)
  • Secant Modulus vs. Strain (ISO 11403-1)
  • Shear Modulus vs. Temperature (ISO 11403-1)
  • Specific Heat vs. Temperature (ISO 11403-2)
  • Specific Volume vs Temperature (ISO 11403-2)
  • Viscosity vs. Shear Rate (ISO 11403-2)
PhysicalNominal ValueUnitTest Method
Density 1.04g/cm³ISO 1183
Apparent Density 0.65g/cm³ISO 60
Melt Mass-Flow Rate (MFR) (200°C/5.0 kg)11g/10 minISO 1133
Molding Shrinkage 0.40 - 0.70%Internal method
Water Absorption (23°C, 24 hr)< 0.10%ISO 62
HardnessNominal ValueUnitTest Method
Rockwell Hardness (L-Scale)60ISO 2039-2
MechanicalNominal ValueUnitTest Method
Tensile Modulus 1700MPaISO 527-2/1
Tensile Stress ISO 527-2/50
    Yield 18.0MPaISO 527-2/50
    Fracture 17.0MPaISO 527-2/50
Tensile Strain (Break)55%ISO 527-2/50
Flexural Stress 132.0MPaISO 178
ImpactNominal ValueUnitTest Method
Notched Izod Impact
    23°C, 3.20 mm 110J/mISO 180/4A
    -30°C 26.5kJ/m²ISO 180/1A
    23°C 39.0kJ/m²ISO 180/1A
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load (1.8 MPa, Annealed)81.0°CASTM D648
Vicat Softening Temperature
    -- 90.0°CISO 306/A50
    -- 82.0°CISO 306/B50
CLTE - Flow 9.0E-5cm/cm/°CASTM D696
Thermal Conductivity 0.17W/m/KISO 8302
ElectricalNominal ValueUnitTest Method
Surface Resistivity > 1.5E+15ohmsIEC 60093
Volume Resistivity > 7.0E+15ohms·cmIEC 60093
Dielectric Strength 65kV/mmIEC 60243-1
Dielectric Constant (50 Hz)2.50IEC 60250
Dissipation Factor (50 Hz)3.0E-4IEC 60250
Comparative Tracking Index (Solution A)500VIEC 60112
FlammabilityNominal ValueUnitTest Method
Flame Rating (1.50 mm, All Colors)HBUL 94
Glow Wire Ignition Temperature (1.60 mm)650°CIEC 60695-2-13
Additional InformationNominal Value
Designation Thermoplastics ISO 2897-PS-I,M,083-12-07-18
InjectionNominal ValueUnit
Processing (Melt) Temp 200 - 250°C
Mold Temperature 20.0 - 60.0°C
Injection instructions
Predrying normally not required
Note Message
1 .2.0 mm/min
2 .4mm
3 .4mm
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