Dow ENGAGE™ HM 7280 Polyolefin

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Dow ENGAGE™ HM 7280 Polyolefin
Categories:	Polymer; Thermoplastic; Polyolefin
Material Notes:	Product Description: ENGAGE™ HM 7280 Polyolefin Elastomer resin is produced via gas phase polymerization from Dow. This is an ethylene-butene copolymer exhibiting high flexibility and elasticity. It can be utilized in monolayer and coextruded films and in blends with other polyolefins to enhance melt strength and toughness of the structure. High elasticity with good elastic recovery High melt strength Good impact strength Good flow characteristics Availability: Asia Pacific; Europe: Latin America; North America Form: Pellets Information provided by The Dow Chemical Company
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Physical Properties	Metric	English	Comments

Density	0.886 g/cc	0.0320 lb/in³	ASTM D792
Mooney Viscosity	42 @Temperature 150 °C	42 @Temperature 302 °F	ML1+4; ASTM D1646
Melt Flow	<= 0.50 g/10 min @Load 2.16 kg, Temperature 190 °C	<= 0.50 g/10 min @Load 4.76 lb, Temperature 374 °F	ASTM D1238
Crystallinity	24.7 %	24.7 %

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	84	84	Compression Molded; ASTM D2240
Hardness, Shore D	29	29	Compression Molded; ASTM D2240
Tensile Strength at Break	5.10 MPa	740 psi	Compression Molded, 20 in/min; ASTM D638
	21.7 MPa @Thickness 1.00 mm	3150 psi @Thickness 0.0394 in	ASTM D412
Elongation at Break	310 %	310 %	Compression Molded, 20 in/min; ASTM D638
	640 % @Thickness 1.00 mm	640 % @Thickness 0.0394 in	ASTM D412
Tensile Modulus	0.00450 GPa	0.653 ksi	100% Secant, 20 in/min, Compression Molded; ASTM D638
Flexural Modulus	0.0253 GPa	3.67 ksi	1% Secant, Compression Molded; ASTM D790
	0.0282 GPa	4.09 ksi	2% Secant, Compression Molded; ASTM D790
Tear Strength	47.0 kN/m	268 pli	Die C, Compression Molded; ASTM D624
	55.0 kN/m @Thickness 1.00 mm	314 pli @Thickness 0.0394 in	Die C; ASTM D624

Thermal Properties	Metric	English	Comments
Melting Point	116 °C	241 °F
Vicat Softening Point	60.0 °C	140 °F	ASTM D1525
Glass Transition Temp, Tg	-43.0 °C	-45.4 °F

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PDOWF527 / 311220

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