Redwood Plastics AASHTO GR3/GR5 Natural Rubber

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Redwood Plastics AASHTO GR3/GR5 Natural Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Information provided by Redwood Plastics and Rubber
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Mechanical Properties	Metric	English	Comments

Hardness, Shore A	45 - 55	45 - 55	ASTM D 2240
	<= 60 @Temperature >=70.0 °C, Time 605000 sec	<= 60 @Temperature >=158 °F, Time 168 hour	ASTM D 573
Tensile Strength	>= 15.5 MPa	>= 2250 psi	ASTM D412, Method A
	>= 11.625 MPa @Temperature >=70.0 °C, Time 605000 sec	>= 1686.1 psi @Temperature >=158 °F, Time 168 hour	ASTM D 573
Elongation at Break	>= 450 %	>= 450 %	Ultimate; ASTM D412, Method A
	>= 337.5 % @Temperature >=70.0 °C, Time 605000 sec	>= 337.5 % @Temperature >=158 °F, Time 168 hour	ASTM D 573
Compression Set	<= 25 % @Temperature 70.0 °C, Time 79200 sec	<= 25 % @Temperature 158 °F, Time 22.0 hour	ASTM D 395 Method B

Thermal Properties	Metric	English	Comments
Brittleness Temperature	-57.0 °C	-70.6 °F	No Failure at Temp; ASTM D746, Procedure B
	-40.0 °C	-40.0 °F	No Failure at Temp; ASTM D746, Procedure B

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PREDW092 / 296658

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