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Avantra® 8731

High Impact Polystyrene

Supplied by PMC Group Polymer Products

The technical datasheet with complete property values for Avantra® 8731 is available to members of the Prospector Plastics Database.
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Product Description
Avantra® 8731 is a ignition resistant grade of high impact polystyrene with. It is free of polybrominated diphenylethers and meets UL94V-0 (@ 0.062"/1.5 mm min.) rating. It exhibits excellent mechanical and heat resistance properties.

Applications
Avantra® 8731 is recommended for sheet extrusion and injection molding
General  
Material Status 
  • Commercial: Active
Availability 
  • North America
Additive 
  • Flame Retardant
Features 
  • High Heat Resistance
  • High Impact Resistance
  • Ignition Resistant
Forms 
  • Pellets
Processing Method 
  • Injection Molding
  • Sheet Extrusion
  
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
     ASTM D570
Saturation
%
  
Equilibrium, 73°F, 50%
%
  
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength
     ASTM D638
Yield
psi
  
Break
psi
  
Tensile Elongation (Yield)
%
 ASTM D638
Flexural Modulus 2
psi
 ASTM D790
Impact
Nominal Value
Unit
Test Method
Notched Izod Impact (73°F)
ft·lb/in
 ASTM D256A
Flammability
Nominal Value
Unit
Test Method
Flame Rating - UL (0.0591 in, Natural, Black, Solid)
 
 UL 94
Additional Information
Water Absorption @ Sat, ASTM D570, 23°C: <0.15%
Moisture Absorption, 23°C/ 50% rh: <0.1%
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Avantra® 8731, Avantra 8731, Avantra® , Avantra, Avantra8731, 8731, PS, Polystyrene, High Impact, Polystyrene High Impact, PS (HIPS), PS HIPS, Polystyrene, PMC Group, PolystyreneHighImpact, PSHIPS
Features
Features may also be described by the following terms: High Impact Resistance, High Heat Resistance.
Injection
Nominal Value
Unit
 
Processing (Melt) Temp
°F
  
Notes
1Typical properties: these are not to be construed as specifications.
2Method I (3 point load)
 
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.