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STYRON™ 685D

General Purpose Polystyrene Resin

Supplied by Styron LLC

The technical datasheet with complete property values for STYRON™ 685D is available to members of the Prospector Plastics Database.
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Product Description
STYRON 685D is a high heat resistance, high tensile strength and high stiffness, general purpose polystyrene. It is recommended for applications where tensile and melt strength as well as heat resistance properties are important.

Characteristics
  • High heat

Applications
  • Media enclosures
  • Refrigerator accessories
  • Oriented polystyrene sheets

Complies with
  • U.S. FDA 21 CFR 177.1640
  • Europe REGULATION (EC) 10/2011
  • CAN. HPB NO OBJECTION (WITH LIMITATIONS)
  • CSA (Canada Standards Association)
  • Consult Regulations for details.
General  
Material Status 
  • Commercial: Active
Availability 
  • Asia Pacific
Agency Ratings 
  •  1
  •  1
  •  1
Appearance 
  • Clear/Transparent
Forms 
  • Pellets
Processing Method 
  • Blow Molding
  • Extrusion Blow Molding
  • Film Extrusion
  • Foam Extrusion
  • Injection Blow Molding
  • Injection Molding
  • Sheet Extrusion
  • Thermoforming
Physical
Nominal Value
Unit
Test Method
Specific Gravity
      
--
 
 ASTM D792
--
lb/in³
 ISO 1183 3
Melt Mass-Flow Rate (MFR) (200°C/5.0 kg)
g/10 min
 ASTM D1238
Melt volume-flow rate (200°C/5.0 kg)
in³/10min
 ISO 1133 3
Molding Shrinkage - Flow
in/in
 ASTM D955
Mechanical
Nominal Value
Unit
Test Method
Tensile modulus
psi
 ISO 527-2 3
Tensile Strength
      
Yield, Injection Molded
psi
 ASTM D638
Yield
psi
 ISO 527-2 3
Tensile Strain
      
Yield
%
 ISO 527-2 3
Break, Injection Molded
%
 ASTM D638
Nominal strain at break
%
 ISO 527-2 3
Flexural Modulus (Injection Molded)
psi
 ASTM D790
Flexural Strength
     ASTM D790
Compression Molded
psi
  
Injection Molded
psi
  
Impact
Nominal Value
Unit
Test Method
Charpy notched impact strength
     ISO 179/1eA 3
-22°F
ft·lb/in²
  
73°F
ft·lb/in²
  
Charpy impact strength
     ISO 179/1eU 3
-22°F
ft·lb/in²
  
73°F
ft·lb/in²
  
Notched Izod Impact (73°F)
ft·lb/in
 ASTM D256
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load
      
66 psi
°F
 ISO 75-2 3
264 psi, Unannealed
°F
 ASTM D648
264 psi
°F
 ISO 75-2 3
Vicat Softening Temperature
      
--
°F
 ASTM D1525
50°C/h, B (50N)
°F
 ISO 306 3
CLTE - Flow
in/in/°F
 ISO 11359-2 3
Flammability
Nominal Value
Unit
Test Method
Flame Rating - UL 4 (0.0580 in, ALL)
 
 UL 94
Burning Behav. at 1.6mm nom. thickn. (0.06 in, UL)
 
 ISO 1210 3
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: STYRON™ 685D, STYRON 685D, STYRON™ , STYRON, STYRON685D, 685 D, 685D, PS, Polystyrene, General Purpose, Polystyrene General Purpose, PS (GPPS), PS GPPS, Polystyrene, PolystyreneGeneralPurpose, PSGPPS, D685
Agency Ratings
This plastic material has 3 certifications from the following agencies (the number in parentheses shows the number of certifications for that agency): CSA (1), HPFB (Canada) (1), FDA (1).
Notes
1Consult Regulations for details
2Typical properties: these are not to be construed as specifications.
3Tested in accordance with ISO 10350. 23°C/50%r.h. unless otherwise noted.
4This 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.