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

Addivant WESTON 705 Antioxidant

Addivant WESTON 705 Antioxidant is a high-performance hindered phenolic antioxidant from Addivant’s WESTON® series. It delivers exceptional thermal and oxidative stability for polyolefins, elastomers, and engineering plastics. Widely used in PP, PE, and TPO applications, it offers low volatility, excellent compatibility, and synergistic performance with phosphites. Compliant with FDA 21 CFR and EU food-contact regulations.
  • addivant weston 705 antioxidant_0bc1498c
  • addivant weston 705 antioxidant_0bc1498c

Features Of Addivant WESTON 705 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 odor—ideal for applications requiring high aesthetic and sensory performance.

  4. Good hydrolytic stability, maintaining efficacy during high-moisture processing conditions.

  5. Synergistic with phosphites and thioesters for enhanced long-term stabilization systems.

Typical Applications Of Addivant WESTON 705 Antioxidant

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

  2. HDPE and LDPE packaging films, especially for food-contact and pharmaceutical packaging.

  3. Automotive interior components requiring low VOC and low fogging performance.

  4. Rotomolded polyethylene tanks and containers exposed to elevated temperatures.

  5. Blown and cast film applications demanding consistent melt stability and clarity.

Specifications Of Addivant WESTON 705 Antioxidant

Chemical TypeHindered phenol
Product FormPellets
AppearanceWhite to off-white free-flowing pellets
Primary ApplicationsPolyolefins (PP, PE), engineering plastics
Key FeaturesThermal stability, low volatility, non-staining
BenefitsExtended polymer service life, reduced discoloration, improved processing safety
Recommended Use Level0.1–0.4 wt% depending on application and polymer matrix
Storage ConditionsStore in cool, dry place; keep container tightly closed


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