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

DOW Elvax 420 Toughener

DOW Elvax 420 Toughener is a copolymer ethylene-vinyl acetate (EVA) resin from Dow’s Elvax series, engineered as a high-performance impact modifier for polyolefins and engineering plastics. It enhances toughness, flexibility, and low-temperature performance while maintaining processability in extrusion and injection molding applications.
  • dow elvax 420 toughener_a0219fca
  • dow elvax 420 toughener_a0219fca

Features Of DOW Elvax 420 Toughener

  1. Highly effective ethylene-vinyl acetate (EVA) copolymer toughener for rigid thermoplastics.

  2. Excellent low-temperature impact resistance enhancement without compromising stiffness.

  3. Good melt processability and compatibility with polyolefins, PVC, and engineering resins.

  4. Enables improved ductility and crack propagation resistance in injection-molded and extruded parts.

  5. Provides consistent performance across varying processing conditions and formulation loads.

Typical Applications Of DOW Elvax 420 Toughener

  1. Automotive interior trim components requiring dimensional stability and impact durability.

  2. Rigid packaging containers where drop resistance and stress-crack resistance are critical.

  3. Electrical enclosures and housings demanding balanced toughness and rigidity.

  4. Medical device housings requiring biocompatibility-supporting polymer formulations.

  5. Consumer appliance parts exposed to mechanical shock and thermal cycling.

Specifications Of DOW Elvax 420 Toughener

Chemical TypeEthylene-Vinyl Acetate (EVA) Copolymer
Product FormPellets
AppearanceOff-white to light tan, free-flowing pellets
Vinyl Acetate ContentApprox. 28 wt%
Melt Index (190°C/2.16 kg)2.5–4.5 g/10 min
Density (23°C)0.928–0.932 g/cm³
Primary ApplicationsToughening agent for rigid thermoplastics
Key FeaturesImpact modification, low-temperature ductility, processing stability


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