Dow ENGAGE™ 8457 DA Polyolefin

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Dow ENGAGE™ 8457 DA Polyolefin
Categories:	Polymer; Thermoplastic; Polyolefin
Material Notes:	Product Description: ENGAGE™ 8457 DA Polyolefin Elastomer is an ethylene-octene copolymer that offers excellent toughness, softness, and optical properties. It has excellent compatibility with other polyolefins, allowing for efficient blending and coextrusion. It provides excellent flow properties and is efficiently cross-linked by peroxide, silane, or irradiation. When cross-linked, it gives exceptional heat aging, compression set, and weather resistance properties. Main Characteristics: Pellet form Good clarity, toughness, and flexibility Excellent compatibility with polyolefins Exceptional heat aging, compression set, and weather resistance when cured Talc dusted (untreated, 1µm) Applications: Blends Availability: Latin America; North America Form: Pellets Information provided by The Dow Chemical Company
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Physical Properties	Metric	English	Comments

Density	0.877 g/cc	0.0317 lb/in³	ASTM D792
Mooney Viscosity	11 @Temperature 121 °C	11 @Temperature 250 °F	ML1+4; ASTM D1646
Melt Flow	3.0 g/10 min @Load 2.16 kg, Temperature 190 °C	3.0 g/10 min @Load 4.76 lb, Temperature 374 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	74 @Time 1.00 sec	74 @Time 0.000278 hour	Compression Molded; ASTM D2240
Hardness, Shore D	24 @Time 1.00 sec	24 @Time 0.000278 hour	Compression Molded; ASTM D2240
Tensile Strength at Break	11.2 MPa	1620 psi	Compression Molded, 20 in/min; ASTM D638
Elongation at Break	950 %	950 %	Compression Molded, 20 in/min; ASTM D638
Tensile Modulus	0.00300 GPa	0.435 ksi	100% Secant, 20 in/min, Compression Molded; ASTM D638
Flexural Modulus	0.0165 GPa	2.39 ksi	2% Secant, Compression Molded; ASTM D790
	0.0168 GPa	2.44 ksi	1% Secant, Compression Molded; ASTM D790
Tear Strength	45.2 kN/m	258 pli	Die C; ASTM D624

Thermal Properties	Metric	English	Comments
Melting Point	66.1 °C	151 °F
Crystallization Temperature	47.8 °C	118 °F	Peak
Vicat Softening Point	47.8 °C	118 °F	ASTM D1525
Glass Transition Temp, Tg	-51.0 °C	-59.8 °F

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PDOWF524 / 311217

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