STYRON™ 438

Category: PS (HIPS) , High Impact Polystyrene Resin
Manufacturer: Trinseo
Trademark: STYRON™
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: nkmzdD_STYRON-438.pdf
PRICE: ​Order Products​ email   sales@su-jiao.com
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Message
STYRON™ 438 is a high-impact polystyrene resin with good flow, excellent stiffness, high heat and impact resistance. It is designed for injection molding applications.

Main Characteristics:
  • High heat
  • Good balance of toughness and stiffness

Complies with:
  • U.S. FDA 21 CFR 177.1640
  • Consult the regulations for complete details.

Applications:
  • Printers
  • Food containers
  • Household goods
General Information
Features
  • Food Contact Acceptable
  • Good Flow
  • Good Stiffness
  • Good Toughness
  • High Heat Resistance
  • High Impact Resistance
Uses
  • Business Equipment
  • Containers
  • Household Goods
Agency Ratings
  • FDA 21 CFR 177.1640
Forms
  • Pellets
Processing Method
  • Injection Molding
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.04g/cm³ASTM D792
Melt Mass-Flow Rate (MFR) (200°C/5.0 kg)5.0g/10 minASTM D1238
Molding Shrinkage - Flow 0.40 to 0.70%ASTM D955
MechanicalNominal ValueUnitTest Method
Tensile Strength ASTM D638
    Yield, Injection Molded 33.1MPa
    Ultimate, Injection Molded 30.3MPa
Tensile Elongation (Break, Injection Molded)40%ASTM D638
Flexural Modulus (Injection Molded)2560MPaASTM D790
Flexural Strength (Injection Molded)58.6MPaASTM D790
ImpactNominal ValueUnitTest Method
Notched Izod Impact (23°C)91J/mASTM D256
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load ASTM D648
    1.8 MPa, Unannealed 77.2°C
    1.8 MPa, Annealed 98.9°C
Vicat Softening Temperature 105°CASTM D1525
CLTE - Flow 7.6E-5cm/cm/°CASTM D696
FlammabilityNominal ValueTest Method
Flame Rating 1(1.50 mm)HBUL 94
Note Message
1 .This rating not intended to reflect hazards presented by this or any other material under actual fire conditions.
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