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

DuPont Fusabond M623 Toughener

DuPont Fusabond M623 Toughener is a maleic anhydride-grafted ethylene–propylene copolymer designed to enhance interfacial adhesion and impact resistance in polyolefin composites. It improves compatibility between non-polar resins and polar fillers/fibers, enabling superior mechanical performance in automotive and industrial applications.
  • dupont fusabond m623 toughener_e208612c
  • dupont fusabond m623 toughener_e208612c

Features Of DuPont Fusabond M623 Toughener

  1. Maleic anhydride-grafted ethylene–propylene copolymer for enhanced interfacial adhesion between polyolefins and polar substrates.

  2. Enables improved impact resistance and toughness in polypropylene (PP) and polyethylene (PE) compounds without compromising melt processability.

  3. Offers excellent thermal stability during extrusion and injection molding, supporting high-output manufacturing.

  4. Provides consistent dispersion and reactive compatibilization in multi-material systems, including filled and reinforced composites.

  5. Designed for low-volatility processing—minimizes odor and plate-out in sensitive applications such as automotive interior parts.

Typical Applications Of DuPont Fusabond M623 Toughener

  1. Automotive interior trim components requiring dimensional stability and low-temperature impact performance.

  2. Multi-layer coextruded films combining PP or PE with EVOH or PA for barrier packaging.

  3. Toughened polyolefin blends used in durable consumer goods housings and appliance parts.

  4. Recycled polyolefin formulations where compatibility between mixed resin streams must be restored.

  5. Structural under-hood components exposed to thermal cycling and mechanical stress.

Specifications Of DuPont Fusabond M623 Toughener

Chemical TypeMaleic anhydride-grafted ethylene–propylene copolymer
Product FormPellets
AppearanceOff-white to light tan cylindrical pellets
Primary ApplicationsPolyolefin toughening, compatibilization, and adhesion promotion
Key FeaturesReactive functionalization, low extractables, high graft efficiency
BenefitsImproved impact strength, reduced delamination, enhanced recyclate compatibility
Processing MethodExtrusion, injection molding, compounding
Storage ConditionsStore in cool, dry location; protect from moisture and direct sunlight


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