Precision Polymer Engineering E70D Ethylene Propylene Rubber

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Precision Polymer Engineering E70D Ethylene Propylene Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Sulphur cured, Ethylene Propylene Terpolymer, 60-70 °IRHD. Terpolymer of ethylene, propylene and diene monomers. Formulated in accordance with BS2494 Type ‘W’. Water Research Council (WRC) tested to Water Bylaws Scheme ‘Items which have passed full tests of effects on water quality – BS6920’ for use in cold potable water applications. Applications: For joint rings, sealing rings and gaskets used in pipes and fittings associated with potable water systems. WRC approved for cold water applications. WRC Approval No: 0210529
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Mechanical Properties	Original Value	Comments

Hardness, Shore A	65	°IRHD; ASTM D1415
	70	°IRHD, +5 change after 168 hours @ 70°C; ASTM D1415
Tensile Strength, Yield	11.2 MPa	-20% change after 168 hours @ 70°C; ASTM D412
	14.0 MPa	ASTM D412
Elongation at Break	304.5 %	-30% change after 168 hours @ 70°C; ASTM D412
	435 %	ASTM D412
Compression Set	14 % @Temperature 70.0 °C, Time 79200 sec	ASTM D395

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	150 °C
Minimum Service Temperature, Air	-30.0 °C
Flash Point	>= 200 °C

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