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Idemitsu PS US-305

General Purpose Polystyrene

Supplied by Idemitsu PS

The technical datasheet with complete property values for Idemitsu PS US-305 is available to members of the Prospector Plastics Database.
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General  
Material Status 
  • Commercial: Active
Availability 
  • Asia Pacific
Additive 
  • Mold Release
Features 
  • General Purpose
  • Good Mold Release
  • High Heat Resistance
  • High Strength
  
Uses 
  • General Purpose
  • Household Goods
  
Forms 
  • Pellets
Processing Method 
  • Extrusion
  • Injection Molding
  
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
 ASTM D792
Melt Mass-Flow Rate (MFR) (200°C/5.0 kg)
g/10 min
 ASTM D1238
Molding Shrinkage - Flow
in/in
 ASTM D955
Water Absorption (24 hr)
%
 ASTM D570
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength (Break)
psi
 ASTM D638
Tensile Elongation (Break)
%
 ASTM D638
Flexural Modulus
psi
 ASTM D790
Flexural Strength
psi
 ASTM D790
Hardness
Nominal Value
Unit
Test Method
Rockwell Hardness (M-Scale)
 
 ASTM D785
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load (264 psi, Unannealed)
°F
 ASTM D648
Vicat Softening Temperature
°F
 ASTM D1525
CLTE - Flow
in/in/°F
 ASTM D696
Flammability
Nominal Value
Unit
Test Method
Flame Rating - UL (0.0591 in)
 
 UL 94
UL File Number
 
  
UL
Nominal Value
Unit
Test Method
RTI Str
°F
 UL 746
RTI Imp
°F
 UL 746
RTI Elec
°F
 UL 746
Hot-wire Ignition (HWI) (PLC)
 
 UL 746
High Amp Arc Ignition (HAI) (PLC)
 
 UL 746
Optical
Nominal Value
Unit
Test Method
Transmittance
%
 ASTM D1003
Additional Information
Dupont Impact Strength, ASTM D3029: 20 kg-cm
Notched Izod Impact, ASTM D256: 1.4 kg-cm/cm
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Idemitsu PS US-305, Idemitsu PS US305, Idemitsu PS , IdemitsuPSUS305, IdemitsuPS, US, PSUS-305, PSUS305, PSUS:305, PSUS/305, PSUS+305, PSUS_305, PSUS 305, PSUS, US-305, US305, US:305, US/305, US+305, US_305, US 305, PS, Polystyrene, General Purpose, Polystyrene General Purpose, PS (GPPS), PS GPPS, Polystyrene, PolystyreneGeneralPurpose, PSGPPS, 305US, 305PSUS
Features
Features may also be described by the following terms: High Heat Resistance, Good Mold Release, Easy Release, Good Demolding, High Strength.
Uses
Uses may also be described by the following terms: Household Goods, Housewares.
Injection
Nominal Value
Unit
 
Drying Temperature
°F
  
Drying Time
hr
  
Rear Temperature
°F
  
Middle Temperature
°F
  
Front Temperature
°F
  
Nozzle Temperature
°F
  
Mold Temperature
°F
  
Extrusion
Nominal Value
Unit
 
Drying Temperature
°F
  
Drying Time
hr
  
Cylinder Zone 1 Temp.
°F
  
Cylinder Zone 2 Temp.
°F
  
Cylinder Zone 3 Temp.
°F
  
Cylinder Zone 4 Temp.
°F
  
Die Temperature
°F
  
Notes
1Typical properties: these are not to be construed as specifications.
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.