STYRON™ 668

Category: PS (GPPS) , General Purpose Polystyrene
Manufacturer: Americas Styrenics LLC
Trademark: STYRON™
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: OZIdGv_STYRON-668.pdf
PRICE: ​Order Products​ email   sales@su-jiao.com
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Message
STYRON™668 is a general-purpose polystyrene material,. This product is available in North America and is processed by injection molding.

STYRON™The main features of the 668 are:
  • flame retardant/rated flame
  • accessible food
  • Good toughness
  • Heat resistance

Typical application areas include:
  • packing
  • food contact applications
General Information
Features
  • Good liquidity
  • Heat resistance, high
  • Good toughness
  • Compliance of Food Exposure
Uses
  • Media packaging
Agency Ratings
  • FDA 21 CFR 177.1640
UL File Number
  • E326906
Forms
  • Particle
Processing Method
  • Injection molding
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.04g/cm³ASTM D792
Melt Mass-Flow Rate (MFR) (200°C/5.0 kg)5.6g/10 minASTM D1238
Molding Shrinkage - Flow 0.40 - 0.80%ASTM D955
HardnessNominal ValueUnitTest Method
Rockwell Hardness (L-Scale)107ASTM D785
MechanicalNominal ValueUnitTest Method
Tensile Modulus (Injection Molded)3170MPaASTM D638
Tensile Strength ASTM D638
    Fracture, injection molding 50.0MPaASTM D638
    Injection Molding 50.0MPaASTM D638
Tensile Elongation (Break, Injection Molded)3.0%ASTM D638
Flexural Modulus (Injection Molded)3480MPaASTM D790
Flexural Strength (Injection Molded)66.0MPaASTM D790
ImpactNominal ValueUnitTest Method
Notched Izod Impact (23°C, Injection Molded)21J/mASTM D256
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load ASTM D648
    0.45 MPa, not annealed 94.0°CASTM D648
    1.8 MPa, not annealed 86.0°CASTM D648
Vicat Softening Temperature 103°CASTM D1525
CLTE - Flow 9.0E-5cm/cm/°CASTM D696
FlammabilityNominal ValueTest Method
Flame Rating HBUL 94
InjectionNominal ValueUnit
Rear Temperature 218 - 249°C
Middle Temperature 218 - 249°C
Front Temperature 199 - 213°C
Nozzle Temperature 213 - 243°C
Mold Temperature 15.6 - 65.6°C
Injection Rate Fast
Back Pressure 0.200 - 1.20MPa
Cushion 6.35mm
ExtrusionNominal ValueUnit
Cylinder Zone 1 Temp. 177 - 193°C
Cylinder Zone 2 Temp. 182 - 204°C
Cylinder Zone 3 Temp. 188 - 210°C
Cylinder Zone 4 Temp. 199 - 216°C
Cylinder Zone 5 Temp. 204 - 221°C
Adapter Temperature 193 - 232°C
Melt Temperature 193 - 232°C
Die Temperature 199 - 232°C
Extrusion instructions
Zone 6 Temperature: 204 to 221°CMelt Pump, Pipes, Screen Changer Temperature: 193 to 232°CPolish Rolls Temperature: 66 to 104°CHead Pressure: 10 to 21 MPa
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