Dow Engage® 8440 POE is a high-performance polyolefin elastomer offering superior impact modification and processing compatibility. Ideal for automotive parts, wire, cable, and plastic toughening.
| Manufacturer | Dow |
|---|---|
| Density | 0.897 g/cm³ |
| MFR | 1.6 g/10min |
| Tensile Strength at Yield | 5.90 MPa |
| Elongation at Break | 760 % |
Note: See the product description for additional technical specifications
Dow Engage® 8440 POE is a polyolefin elastomer developed by the global chemical giant, Dow. This material belongs to the category of high-performance polyolefin copolymers, appearing as regular, translucent granules with exceptional stability in physical properties. As an industry-recognized leading elastomer, Engage® 8440 POE holds a prominent position in industrial applications. Thanks to its superior flexibility, processability, and excellent blending modification capabilities, it is widely used in sectors such as automotive components, wire and cable, plastic toughening modification, and various high-performance extrusion and injection molding applications.
| Physical Properties | Test Condition | Test Value | Test Standard |
| Density | — | 0.897 g/cm³ | — |
| Melt Index, Compound | 2.16 kg, 190 °C | 1.6 g/10min | ASTM D1238 |
| Shore Hardness A | — | 92 | ASTM D2240 |
| Shore Hardness D | — | 41 | ASTM D2240 |
| Mechanical Properties | Test Condition | Test Value | Test Standard |
| Tensile Strength, Ultimate | — | 24.5 MPa | ASTM D638 |
| Tensile Strength, Yield | — | 5.90 MPa | ASTM D638 |
| Tensile Strain, Break | chs 500 mm/min | 760 % | ASTM D638 |
| Tensile Modulus, 2% Strain | — | 59.2 MPa | ASTM D790 |
| Thermal Properties | Test Condition | Test Value | Test Standard |
| Melting Point | 10°C/min | 94.0 °C | — |
| Vicat Softening Point | — | 76.0 °C | DuPont test; DSC |
The technical data sheet (TDS) of Dow Engage® 8440 POE material from Dow corporation, if there are differences, please refer to the official website of Dow.
Superior Impact Modification Capability: As a high-performance toughening agent, Engage® 8440 significantly improves the impact resistance of base resins such as polypropylene (PP) or polyethylene (PE), effectively addressing low-temperature brittleness in finished products.
Excellent Physical Flexibility: With a balanced Shore hardness (A92/D41), it maintains structural integrity while providing excellent tactile feel and flex fatigue resistance.
Outstanding Processing Compatibility: With a melt index of 1.6 g/10min, this material exhibits stable melt flow during extrusion and injection molding, allowing for uniform blending with various plastics.
High Tensile Performance: An elongation at break of 760% allows the material to effectively absorb energy and prevent catastrophic failure when subjected to impact or deformation.
Stable Thermal Performance: A melting point of 94.0 °C and a Vicat softening point of 76.0 °C ensure stable physical dimensions under ambient and slightly elevated temperature conditions, adapting to various demanding operating environments.
Automotive Industry: Widely used in the toughening modification of bumpers and interior trim parts to enhance the impact safety performance of automotive components.
Wire and Cable Industry: Used as the base material for insulation layers or sheaths in wires and cables, providing excellent electrical insulation and tear resistance.
Plastic Modification (TPO/TPV): Serves as a core modifier for producing thermoplastic polyolefins (TPO) and thermoplastic vulcanizates (TPV), used in sealing strips, vibration dampers, and other fields.
Consumer and Industrial Packaging: Applied in high-performance film layers to increase puncture resistance and sealing toughness.
Hoses and Seals: Utilized for its high elasticity to manufacture industrial hoses, roller seals, and various flexible injection-molded parts.
Q1: Does Engage® 8440 POE require special drying before processing?
A: Although POE resin has low moisture absorption, it is recommended to use a dehumidifying dryer to pre-dry the material before processing to ensure surface quality and avoid bubbles or defects in the final product. Recommended settings are 60-80°C for 2-4 hours to ensure residual moisture is below standard requirements.
Q2: What are the advantages of Engage® 8440 compared to other toughening agents?
A: Compared to traditional rubber or other elastomers, Engage® 8440 features a narrower molecular weight distribution and more uniform short-chain branching. This results in superior dispersion when blended with base resins, preventing significant interfacial debonding and providing finished products with better impact strength and surface appearance.
Q3: Does this material comply with environmental regulations (e.g., RoHS)?
A: Engage® 8440 POE belongs to Dow’s premium polyolefin elastomer series and does not contain added heavy metals or restricted hazardous substances during production. This grade generally complies with RoHS 2.0 and REACH requirements, suitable for various applications including household appliances, electronics, and automotive industries. For specific lot-based COA or SGS test reports, it is recommended to consult your local supplier.
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