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

DuPont Fusabond N493 Impact modifier

DuPont™ Fusabond® N493 is an anhydride-modified ethylene copolymer with high maleic anhydride grafting rate, featuring compatibilization, toughening and adhesion promotion. It enhances interfacial bonding between polyolefins and polar materials, improves mechanical properties of composites, and suits wire & cable, wood-plastic composite and flame-retardant modification scenarios.

Features Of DuPont Fusabond N493 Impact modifier

  1. High maleic anhydride grafting rate, excellent modification effect for polyamide blends.

  2. Dual functions of compatibilization and toughening, enhancing interfacial bonding strength of composites.

  3. Reduces water absorption of fillers like wood flour, improving filler dispersion in polyolefin matrix.

  4. Strengthens bonding between inorganic flame retardants and polymers, boosting product flexibility and flame retardancy.

  5. Low melting point for low-temperature processing, excellent thermal stability with no precipitation risk.

Typical Applications Of DuPont Fusabond N493 Impact modifier

  1. Used as compatibilizer and coupling agent for polyolefin (PP/PE)-wood flour composites (WPC).

  2. Applied in modification of polyolefin wire & cable compounds to improve comprehensive performance.

  3. Suitable for halogen-free flame-retardant blends, enhancing compatibility between inorganic fillers and polymers.

  4. Serves as impact modifier for thermoplastic resins such as PA and PP to improve product toughness.

  5. Acts as adhesion promoter for polyolefins with metals, glass fibers, cellulose and other materials.

Specifications Of DuPont Fusabond N493 Impact modifier


ParameterSpecification / Value
Density0.88 g/cm³
Melt Flow Index (190°C / 2.16 kg)3.7 g/10min
Flexural Modulus (0.05 in/min, 23°C)3258 psi (22 MPa)
Elongation at Break (V-type, 50mm/min, 23°C)587 %
Elongation at Break (V-type, 550mm/min, 23°C)551 %
Tensile Strength at Break (V-type, 50mm/min, 20°C)2085 psi (14 MPa)
Tensile Strength at Break (V-type, 50mm/min, 23°C)933 psi (6 MPa)
Durometer Hardness (D)30
Melting Point (DSC)58 °C (136.4 °F)
Freezing Point (DSC)42 °C (107.6 °F)
Glass Transition Temperature (DSC)-49 °C (-56.2 °F)
Vicat Softening Point42 °C (107.6 °F)



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