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

Addivant WESTON 619 Antioxidant

Addivant WESTON 619 Antioxidant is a high-performance hindered phenolic antioxidant from Addivant’s WESTON® series, designed for polyolefins and elastomers. It offers exceptional thermal stability, low volatility, and synergistic performance with phosphites. Widely used in PP, PE, and TPO applications to prevent oxidative degradation during processing and long-term service life.
  • addivant weston 619 antioxidant_88df1547
  • addivant weston 619 antioxidant_88df1547

Features Of Addivant WESTON 619 Antioxidant

  1. High-performance hindered phenolic antioxidant offering exceptional thermal and oxidative stability.

  2. Low volatility and excellent compatibility with polyolefins, including PP and HDPE.

  3. Non-staining and low migration, supporting long-term polymer performance in demanding applications.

  4. Regulatory compliant for food-contact applications under FDA 21 CFR §178.2010 and EU Directive 10/2011.

  5. Easy to handle as free-flowing crystalline powder with consistent particle size distribution.

Typical Applications Of Addivant WESTON 619 Antioxidant

  1. Polypropylene (PP) fibers and nonwovens for hygiene and medical use.

  2. HDPE and LDPE blow-molded containers for packaging and industrial applications.

  3. Automotive interior components requiring high-temperature resistance and color stability.

  4. Food-grade plastic films and rigid packaging where regulatory compliance is critical.

  5. Recycled polyolefin formulations needing robust stabilization against processing degradation.

Specifications Of Addivant WESTON 619 Antioxidant

Chemical TypeHindered phenol
Product FormFree-flowing crystalline powder
AppearanceWhite to off-white granules
Melting Point125–130 °C (determined by DSC)
Assay (by HPLC)≥ 99.0%
Volatile Matter (105 °C, 2 h)≤ 0.15%
Ash Content≤ 0.05%
Primary ApplicationsPolyolefins (PP, PE), especially food-contact and high-heat processing


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