Precision Polymer Engineering E70X Ethylene Propylene Rubber

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Precision Polymer Engineering E70X Ethylene Propylene Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Peroxide cured, Ethylene Propylene Rubber, 65-75 °IRHD. Copolymer of ethylene and propylene. Applications: Excellent water and steam resistance with good compression set properties. Superior heat and chemical resistance compared to sulphur cured EPDM. Not oil resistant.
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Mechanical Properties	Metric	English	Comments

Hardness, Shore A	70	70	°IRHD; ASTM D1415
	80	80	°IRHD, +10 change after 70 hours @ 125°C; ASTM D1415
Tensile Strength, Yield	8.00 MPa	1160 psi	-20% change after 70 hours @ 125°C; ASTM D412
	10.0 MPa	1450 psi	ASTM D412
Elongation at Break	120 %	120 %	-40% change after 70 hours @ 125°C; ASTM D412
	200 %	200 %	ASTM D412
Compression Set	10 % @Temperature 100 °C, Time 79200 sec	10 % @Temperature 212 °F, Time 22.0 hour	ASTM D395

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	150 °C	302 °F
Minimum Service Temperature, Air	-40.0 °C	-40.0 °F
	-40.0 °C	-40.0 °F	Non-brittle after 3 minutes
Flash Point	>= 200 °C	>= 392 °F

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