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Polyurethane Elastomer, Ether Based Data

Material Notes:
Polyurethane elastomer is a polytetramethylene glycol ether based polyurethane elastomer featuring superior resilience, low temperature properties, low compression set,

excellent hydrolytic stability, and resistance to attack by microorganisms. Its typical applications include wheels, seals, and gaskets.

 
Physical Properties Metric English Comments
Density 1.14 g/cc 0.0412 lb/in³  

Mechanical Properties
Hardness, Shore A 88 - 96 88 - 96  ASTM D2240
Hardness, Shore D 43 - 51 43 - 51  ASTM D2240
Tensile Strength at Break 44.8 MPa 6500 psi  Tensile stress at break.
Elongation at Break 450 % 450 %  
50% Modulus 0.00758 GPa 1.1 ksi  
100% Modulus 0.0112 GPa 1.62 ksi  
300% Modulus 0.0248 GPa 3.6 ksi  
Flexural Modulus 0.0758 GPa 11 ksi  
Tear Strength 133 kN/m 759 pli  
Taber Abrasion, mg/1000 Cycles 10 10  H22 Wheel
Compression Set 25 % 25 %  23°C.
Compression Set, Elevated Temperature 28 % 28 %  70°C
Tensile Set 30 % 30 %  Elongation set after break

Thermal Properties
CTE, linear 20°C 152 µm/m-°C 84.4 µin/in-°F  
Vicat Softening Point 106 °C 223 °F  
Glass Temperature -25 °C -13 °F  
Clash-Berg Stiffness Temperature 7.78 °C 46 °F