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

DOW Fusabond M623 Toughener

DOW Fusabond M623 Toughener is a maleic anhydride-grafted ethylene–propylene copolymer from Dow’s Fusabond® functional polymer series, engineered to enhance interfacial adhesion and impact resistance in polyolefin composites, especially for automotive and durable goods applications requiring superior toughness and melt-processability.
  • dow fusabond m623 toughener_02e32eee
  • dow fusabond m623 toughener_02e32eee

Features Of DOW Fusabond M623 Toughener

  1. Maleic anhydride-grafted ethylene–propylene copolymer offering superior impact modification for polyolefin-based compounds.

  2. Enhances adhesion between dissimilar polymers, especially in multi-layer coextruded structures.

  3. Improves melt strength and processability during extrusion and thermoforming operations.

  4. Provides excellent compatibility with polypropylene (PP), polyethylene (PE), and thermoplastic elastomers (TPEs).

  5. Enables formulation of high-toughness, low-temperature impact-resistant materials without sacrificing stiffness.

Typical Applications Of DOW Fusabond M623 Toughener

  1. Automotive interior trim components requiring dimensional stability and crash-energy absorption.

  2. Coextruded multilayer packaging films for improved seal integrity and puncture resistance.

  3. Household appliance housings where thermal cycling resistance and structural durability are critical.

  4. Medical device components requiring consistent mechanical performance and regulatory-compliant polymer blends.

  5. Industrial containers and crates engineered for heavy-duty reuse and impact resilience.

Specifications Of DOW Fusabond M623 Toughener

Chemical TypeMaleic anhydride-grafted ethylene–propylene copolymer
Product FormPellets
AppearanceOff-white to light tan cylindrical pellets
Primary ApplicationsPolyolefin toughening, adhesive tie-layer, compatibilizer in polymer blends
Key FeaturesHigh grafting efficiency, low gel content, excellent thermal stability
BenefitsImproved impact strength, enhanced interfacial adhesion, broad processing window
Recommended Processing Temperature Range180–240 °C
Storage ConditionsStore in original sealed packaging at ambient temperature; protect from moisture


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