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STYRON™ 656D

General Purpose Polystyrene Resin

Supplied by Styron LLC

The technical datasheet with complete property values for STYRON™ 656D is available to members of the Prospector Plastics Database.
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Product Description
STYRON 656D is a general purpose polystyrene with easy flow and good clarity. It is reocmmended for applications where a specific balance of flow and strength are important.

Applications:
  • Media enclosures
  • Disposable cups
  • Blending with HIPS

Complies with:
  • U.S. FDA 21 CFR 177.1640
  • Europe REGULATION (EC) 10/2011
  • Consult the regulation for complete details.
General  
Material Status 
  • Commercial: Active
Availability 
  • Asia Pacific
Agency Ratings 
  •  1
  
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
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength (Yield, Compression Molded)
psi
 ASTM D638
Tensile Elongation (Break, Injection Molded)
%
 ASTM D638
Flexural Modulus (Injection Molded)
psi
 ASTM D790
Flexural Strength (Injection Molded)
psi
 ASTM D790
Impact
Nominal Value
Unit
Test Method
Notched Izod Impact (73°F, Injection Molded)
ft·lb/in
 ASTM D256
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load
     ASTM D648
264 psi, Unannealed
°F
  
264 psi, Annealed
°F
  
Vicat Softening Temperature
°F
 ASTM D1525
CLTE - Flow
in/in/°F
 ASTM D696
Flammability
Nominal Value
Unit
Test Method
Flame Rating - UL 3 (0.0591 in)
 
 UL 94
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: STYRON™ 656D, STYRON 656D, STYRON™ , STYRON, STYRON656D, 656 D, 656D, PS, Polystyrene, General Purpose, Polystyrene General Purpose, PS (GPPS), PS GPPS, Polystyrene, PolystyreneGeneralPurpose, PSGPPS, D656
Agency Ratings
This plastic material has 2 certifications from the following agencies (the number in parentheses shows the number of certifications for that agency): FDA (1), UL (1).
Notes
1This numerical flammability rating is not intended to reflect hazards presented by this or any other material under actual fire conditions.
2Typical properties: these are not to be construed as specifications.
3This rating not intended to reflect hazards presented by this or any other material under actual fire conditions.
 
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.