Dow DMDA-8904 NT 7 High Density Polyethylene Resin

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Dow DMDA-8904 NT 7 High Density Polyethylene Resin
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE)
Material Notes:	DOW DMDA-8904 NT 7 is produced using UNIPOL™ process technology. It is intended for use in injection molding applications such as pails, industrial parts and other shipping containers. Information provided by Dow
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Physical Properties	Metric	English	Comments

Density	0.952 g/cc	0.0344 lb/in³	ASTM D792
ESCR 100% Igepal®	22 hour @Temperature 50.0 °C	22 hour @Temperature 122 °F	F₅₀; Molded and tested in accordance with ASTM D4976; ASTM D1693
Melt Index of Compound	4.4 g/10 min @Load 2.16 kg, Temperature 190 °C	4.4 g/10 min @Load 4.76 lb, Temperature 374 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	59	59	Molded and tested in accordance with ASTM D4976; ASTM D2240
Tensile Strength at Break	31.0 MPa	4500 psi	Molded and tested in accordance with ASTM D4976; ASTM D638
Tensile Strength, Yield	31.0 MPa	4500 psi	Molded and tested in accordance with ASTM D4976; ASTM D638
Elongation at Break	1200 %	1200 %	Molded and tested in accordance with ASTM D4976; ASTM D638
Elongation at Yield	9.0 %	9.0 %	Molded and tested in accordance with ASTM D4976; ASTM D638
Flexural Modulus	1.10 GPa @Strain 2 %	160 ksi @Strain 2 %	Secant; Molded and tested per ASTM D4976; ASTM D790 B
Tensile Impact Strength	84.0 kJ/m²	40.0 ft-lb/in²	Molded and tested in accordance with ASTM D4976; ASTM D1822, Type S

Thermal Properties	Metric	English	Comments
Melting Point	131 °C	268 °F	Dow Method (DSC)
Crystallization Temperature	119 °C	246 °F	Dow Method (DSC)
Deflection Temperature at 0.46 MPa (66 psi)	72.2 °C	162 °F	Molded and tested in accordance with ASTM D4976; ASTM D648
Vicat Softening Point	129 °C	264 °F	ASTM D1525
Brittleness Temperature	<= -76.1 °C	<= -105 °F	Molded and tested in accordance with ASTM D4976; ASTM D746

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PDOW1261 / 30479

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