Dow ENGAGE™ 7256 is an ethylene-butene copolymer designed specifically for extrusion applications, offering excellent processability and mechanical performance. Supplied in pellet form, it is compatible with various extrusion equipment for efficient production of high-performance elastic products.
Excellent processability: Flow properties suitable for various extrusion processes, ensuring high production efficiency and process stability.
Outstanding mechanical properties: High tensile strength and elongation at break, combining rigidity and flexibility.
Balanced temperature resistance: Glass transition temperature as low as -42.0℃ and Vicat softening temperature of 76.0℃, maintaining stable performance in both high and low temperature environments.
Easy-to-handle pellet form: Good blendability with other polymers, allowing flexible formulation adjustments.
Extruded products: Industrial elastic profiles, seals and pipes, ensuring stable performance in high-temperature environments.
Films and sheets: High-toughness packaging films and industrial protective sheets, improving puncture and tear resistance.
Polymer modification: As a toughener for PP/PE, enhancing impact resistance and low-temperature tolerance of extruded products.
Wire & cable: Cable insulation and jacketing materials, improving flexibility and aging resistance.
| Property | Nominal Value (SI / English) |
|---|---|
| Physical | |
| Density | 0.885 g/cm³ |
| Melt Index (190°C/2.16 kg) | 2.5 g/10 min |
| Mooney Viscosity (ML 1+4, 121°C) | 10 MU |
| Mechanical (Compression Molded) | |
| Tensile Modulus - 100% Secant | 3.70 MPa / 537 psi |
| Tensile Strength (Ultimate) | 9.30 MPa / 1350 psi |
| Tensile Elongation (Break) | >600 % |
| Flexural Modulus - 1% Secant | 33.2 MPa / 4820 psi |
| Flexural Modulus - 2% Secant | 33.6 MPa / 4870 psi |
| Elastomer Properties | |
| Tear Strength | 53.7 kN/m / 307 lbf/in |
| Durometer Hardness, Shore A | 84 |
| Durometer Hardness, Shore D | 30 |
| Thermal | |
| Glass Transition Temperature | -42.0 °C / -43.6 °F |
| Vicat Softening Temperature | 76.0 °C / 169 °F |
| Melting Temperature (DSC) | 75.0 °C / 167 °F |
| Peak Crystallization Temperature | 60 °C / 140 °F |
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