API PS 505-21 Datasheet

General Purpose Polystyrene

Supplied by American Polymers, Inc.

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Product Description
API PS 505-21 is a General Purpose Polystyrene material. It is available in North America for injection molding.

Important attributes of API PS 505-21 are:
  • Fast Molding Cycle
  • Impact Modified

Typical applications include:
  • Caps/Lids/Closures
  • Consumer Goods
  • Electrical/Electronic Applications
  • Packaging
General  
Material Status 
  • Commercial: Discontinued
Availability 
  • North America
Additive 
  • Impact Modifier
Features 
  • Fast Molding Cycle
  • Good Flow
  • Impact Modified
  • Medium Gloss
 
Uses 
  • Audio Tapes
  • Caps
  • Cosmetics
  • Food Packaging
 
Forms 
  • Pellets
Processing Method 
  • Injection Molding
Physical
Nominal Value
Unit
Test Method
Density / 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 (Break)
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: Fast Cycle, Rapid Cycle, Productivity, Fast Molding Cycle, Good Flow, Medium Gloss.
Uses
Uses may also be described by the following terms: Closure Caps, Caps, Cap, Food Packaging.
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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