eFunda Polymers: Properties of Thermoplastic elastomers {polyurethane, polyether compound, molding and extrusion compounds, low and medium hardness}
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Thermoplastic elastomers		  
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State: polyurethane
Additives: polyether compound
Application: molding and extrusion compounds, low and medium hardness
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Flexural Modulus (MPa)  17112 - 42711   23 ºC   D790
Tensile Strength (MPa)   2 - 47 at break   D638
Elongation at break (%)   475 - 1000     D638
Hardness   13 - 92  Shore A   D638

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.02   D792
Dielectric Strength (V/mil);
1/8" thick specimen unless noted		   470   D149

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  120 - 160  Tg, amorphous  
Processing Temperature (ºC)  177 - 222  injection molding  
 172 - 210  extrusion  
  23 - 49  compression molding  
Molding Pressure (MPa)   5 - 9    
Linear Mold Shrinkage (cm/cm)  0.008 - 0.015   D955

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Suppliers
A. Schulman Akron, OH  800-662-7203
BASF Corp. Mount Olive, NJ  800-BC-RESIN
Bayer Corp. Pittsburgh, PA  800-662-2927
BF Goodrich Co. Twinsburg, OH  800-425-1634
Cabot Corp. Naperville, IL  800-222-6745
Dow Plastics Midland, MI  800-441-4369

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