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Dow Engage® 8842 Polyolefin Elastomer

Category Polymer , Thermoplastic , Elastomer, TPE , Thermoplastic Elastomer, Melt-Processible Rubber
Manufacturer Dow Chemical
Trade Name Engage®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
Description: Engage® 8842 polyolefin elastomer is an ultra-low density ethylene-octene copolymer with a nominal loose talc surface coating. The talc is untreated and has a nominal 1 µm particle size. This product offers the exceptional properties of an ultra-low density elastomer with the added potential of handling this polymer in pellet form. Engage® 8842 has excellent flow characteristics and provides good impact properties in blends with polypropylene (PP) and polyethylene (PE). It performs well in TPO applications where superior low temperature impact properties are desired. Talc addition significantly improves ability to handle the polymer, but severe blocking can occur if the material is stored under severe conditions (i.e., long duration, elevated temperatures, and/or high weight loadings). To minimize temperature effects, product should be stored at temperatures well below its melting point of 33°C, most preferably below 29°C.Information provided by manufacturer.This former DuPont Dow Elastomers product line is now produced by Dow Chemical.
Physical Properties Metric English Comments
Density 0.857 g/cc
0.0310 lb/in³
ASTM D792
Mooney Viscosity 27

@Temperature 125 °C
27

@Temperature 257 °F
ML 1 + 4; ASTM D1646
Melt Index of Compound 1.0 g/10 min

@Load 2.16 kg,
Temperature 190 °C
1.0 g/10 min

@Load 4.76 lb,
Temperature 374 °F
ASTM D1238
Mechanical Properties Metric English Comments
Hardness, Shore A 50
50
ASTM D2240
Tensile Strength, Ultimate 2.10 MPa
305 psi
508 mm/min; ASTM D638
Tensile Strength, Yield 0.830 MPa
120 psi
508 mm/min; ASTM D638
Elongation at Break 975 %
975 %
508 mm/min; ASTM D638
2% Secant Modulus 0.00350 GPa
0.508 ksi
ASTM D790
Thermal Properties Metric English Comments
Melting Point 33.0 °C
91.4 °F
DSC, 10°C/min; DuPont Test
Brittleness Temperature <= -76.0 °C
<= -105 °F
ASTM D746
Descriptive Properties Value Comments
Comonomer Content 45 wt%
Dow Method (<sup>13</sup>C NMR/FTIR)
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