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API PS 545-21 Data Sheet

High Impact Polystyrene

Supplied by American Polymers, Inc.

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Product Description
API PS 545-21 is a High Impact Polystyrene material. It is available in North America for extrusion, injection molding, or thermoforming.

Important attributes of API PS 545-21 are:
  • Heat Resistant
  • Impact Modified

Typical applications include:
  • Caps/Lids/Closures
  • Containers
General  
Material Status 
  • Commercial: Discontinued
Availability 
  • North America
Additive 
  • Impact Modifier
Features 
  • Good Colorability
  • High Heat Resistance
  • Impact Modified
Uses 
  • Drink Lids
  • Food Containers
 
Appearance 
  • Colors Available
Forms 
  • Pellets
Processing Method 
  • Extrusion
  • Injection Molding
  • Thermoforming
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
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus
psi
ASTM D638
Tensile Strength (Yield)
psi
ASTM D638
Tensile Elongation (Break)
%
ASTM D638
Flexural Modulus
psi
ASTM D790
Impact
Nominal Value
Unit
Test Method
Notched Izod Impact (0.125 in)
ft·lb/in
ASTM D256
Hardness
Nominal Value
Unit
Test Method
Rockwell Hardness (L-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
Features
Features may also be described by the following terms: Good Colorability, High Heat Resistance.
Uses
Uses may also be described by the following terms: Food Containers, Food Container, Drink Lids.
Injection
Nominal Value
Unit
 
Drying Temperature
°F
 
Drying Time
hr
 
Suggested Max Regrind
%
 
Rear Temperature
°F
 
Front Temperature
°F
 
Mold Temperature
°F
 
Injection Pressure
psi
 
Back Pressure
psi
 
Notes
1Typical properties: these are not to be construed as specifications.
 
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The information presented on this datasheet was acquired by UL Prospector from the producer of the material. UL Prospector makes substantial efforts to assure the accuracy of this data. However, UL Prospector assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.