Freudenberg Sealing Technologies 70 EPDM 281 Rubber

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Freudenberg Sealing Technologies 70 EPDM 281 Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	EPDM enjoys high acceptance in the food and pharmaceutical industries. EPDM is indispensable for CIP (clean in place) or SIP (sterilization in place) cleaning processes. However, the fat content of the media may not exceed certain limits. EPDM is a polymerization made of ethylene, propylene and a diene monomer. It displays high media resistance to brake fluids, acids and lyes, the flame-resistant hydraulic fluids HFC and HFD, hot water and steam. But it is not stable in petroleum-based oils and fats or in gasoline and hydrocarbons. In turn, this material is inexpensive and can be used almost universally – although not with oils. Information provided by Freudenberg Sealing Technologies.
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Physical Properties	Metric	English	Comments

Density	1.10 g/cc	0.0397 lb/in³	DIN EN ISO 1183-1

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	74	74	DIN ISO 7619-1
Tensile Strength	16.7 MPa	2420 psi	DIN 53504, S2
Elongation at Break	180 %	180 %	DIN 53504, S2
100% Modulus	6.00 MPa	870 psi	DIN 53504
Rebound	46 %	46 %	DIN 53512
Compression Set	11.1 % @Temperature 150 °C, Time 252000 sec	11.1 % @Temperature 302 °F, Time 70.0 hour	DIN ISO 815, B
	12 % @Temperature 100 °C, Time 86400 sec	12 % @Temperature 212 °F, Time 24.0 hour	DIN ISO 815. B
	19 % @Temperature 24.0 °C, Time 540000 sec	19 % @Temperature 75.2 °F, Time 150 hour	DIN ISO 815, B

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	150 °C	302 °F	dynamic
	150 °C	302 °F	static
Minimum Service Temperature, Air	-52.0 °C	-61.6 °F	DSC; ISO 11357-2
	-50.0 °C	-58.0 °F	static
	-46.0 °C	-50.8 °F	test; ASTM D1329, TR10
	-40.0 °C	-40.0 °F	dynamic

Descriptive Properties
Color	black
Cross-linking	peroxidic

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PFREU9069 / 293609

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