Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

ExxonMobil 5171 Impact Modifier

ExxonMobil EXACT™ 5171 is a high-performance POE with excellent toughness and low temperature resistance. It has good processability and transparency, and is widely used in packaging, automotive and modification fields with stable physical and chemical properties.

Features Of ExxonMobil 5171 Impact Modifier

  1. The molecular structure synthesized by metallocene catalysis endows the material with excellent comprehensive mechanical properties of tear and impact resistance

  2. Stable performance in a wide temperature range, no embrittlement at low temperature, and good retention of physical properties in high temperature environment

  3. High light transmittance and low haze, excellent surface gloss of products, meeting the requirements of appearance and light transmission applications

  4. Compatible with multiple processing technologies such as injection molding, extrusion and blow molding, with high molding efficiency and controllable product precision

  5. Excellent weather and aging resistance, strong chemical stability, suitable for various complex application environments

Typical Applications Of ExxonMobil 5171 Impact Modifier

  1. Photovoltaic module encapsulation film, ensuring the long-term use stability of modules with PID resistance and weather resistance

  2. Automobile seals and exterior parts, improving the impact resistance and outdoor environmental tolerance of products

  3. Cable insulation layer of electronic and electrical appliances, meeting the multiple requirements of material heat resistance, insulation and mechanical protection

  4. Building waterproofing membranes and seals, ensuring the stability and durability of the structure in different environments

Specifications Of ExxonMobil 5171 Impact Modifier

Physical Properties
Density0.868 g/cm³ (ExxonMobil Method)
Melt Flow Index1.0 g/10 min (ExxonMobil Method)
Shore A Hardness70 (ASTM D-2240)
Vicat Softening Temperature54 °C
Mechanical Properties
Tensile Strength>8 MPa (ASTM D-638)
Elongation at Break>2000 % (No Break) (ASTM D-638)
Tear Strength35.8 kN/m (ASTM D-624)
Flexural Modulus13 MPa (ASTM D-790)
Optical Properties
Haze (@50mil)8 % (ASTM D-1003)
























































































































ExxonMobil 5171 Impact Modifier – Frequently Asked Questions (FAQ)

Q1: What types of polymers is ExxonMobil 5171 Impact Modifier typically used with?

A: ExxonMobil 5171 is primarily designed for use in rigid polypropylene (PP) homopolymer and copolymer systems, where enhanced impact resistance—especially at low temperatures—is required. It may also be compatible with certain polyethylene (PE) blends, though performance should be verified through application-specific testing.


Q2: How does ExxonMobil 5171 differ from conventional EPDM-based impact modifiers?

A: Unlike traditional EPDM elastomers, ExxonMobil 5171 is an ethylene–propylene–diene terpolymer (EPDM) specifically engineered for improved dispersion and interfacial adhesion in PP matrices. This contributes to more consistent toughening performance and better retention of stiffness and heat distortion temperature compared to some generic impact modifiers.


Q3: What is the typical dosage range for ExxonMobil 5171 in polypropylene formulations?

A: Dosage depends on the base resin, desired impact performance, and processing conditions, but ExxonMobil 5171 is generally used at low concentrations—typically ranging from 0.1% to 2% by weight—to achieve meaningful improvements in notched Izod impact strength without significantly compromising rigidity or flow properties.


Q4: Is ExxonMobil 5171 suitable for applications requiring FDA compliance or food-contact approval?

A: ExxonMobil 5171 is not pre-approved for food-contact applications under FDA or other global regulatory frameworks. Customers intending to use it in food-contact or medical-grade products must conduct full regulatory evaluation—including extractables testing and compliance verification—based on their specific formulation and end-use conditions.



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