PolyLabs W-62 PU Foam for Midsoles

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PolyLabs W-62 PU Foam for Midsoles
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	W-62 is a medium density polyurethane foam, engineered specifically for midsole applications. The midsole is one of the most critical parts of the shoe sole, as it is designed to provide cushioning, support and shock absorption. Information provided by PolyLabs.
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Physical Properties	Original Value	Comments

Density	0.350 - 0.500 g/cc	example density range
Linear Mold Shrinkage	0.0090 cm/cm	at 0.35 g/cc density

Mechanical Properties	Original Value	Comments
Hardness, Shore A	30
Tensile Strength	262 psi	at 0.35 g/cc density
	305 psi	at 0.4 g/cc density
	352 psi	at 0.5 g/cc density
Elongation at Break	383 %	at 0.35 g/cc density
	470 %	at 0.4 g/cc density
	530 %	at 0.5 g/cc density
Flex Crack Resistance	>= 100000 @Temperature -28.9 °C	cycles to failure at 0.35 g/cc density; Ross Flex
Tear Strength	16.0 pli	Foam Tear at 0.35 g/cc density
	39.5 pli	Die C at 0.35 g/cc density
	45.0 pli	Die C at 0.4 g/cc density
	56.0 pli	Die C at 0.5 g/cc density
Taber Abrasion, mg/1000 Cycles	<= 100	at 0.35 g/cc density

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PPOLYLA989 / 265888

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