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

SI Group AT-330 E-330 Antioxidant

SI Group AT-330 E-330 Antioxidant is a high-performance hindered phenolic antioxidant from SI Group’s AT series, designed for polymer stabilization in demanding thermal and oxidative environments. It offers excellent melt protection, low volatility, and superior compatibility with polyolefins, engineering plastics, and elastomers—ensuring extended service life and consistent processing performance.
  • si group at 330 e 330 antioxidant_ff199066
  • si group at 330 e 330 antioxidant_ff199066

Features Of SI Group AT-330 E-330 Antioxidant

  1. High-performance hindered phenolic antioxidant offering excellent long-term thermal stability.

  2. Low volatility and minimal migration, ensuring consistent protection in demanding processing conditions.

  3. Compatible with a broad range of polymers including polyolefins, styrenics, and engineering thermoplastics.

  4. Non-staining and low odor—ideal for applications requiring high aesthetic and sensory performance.

  5. Regulatory compliant with major global food-contact and toy-safety standards (e.g., FDA 21 CFR §178.2010, EU Directive 10/2011).

Typical Applications Of SI Group AT-330 E-330 Antioxidant

  1. Polypropylene (PP) and polyethylene (PE) films, fibers, and injection-molded parts.

  2. Automotive interior components exposed to elevated temperatures and UV stress.

  3. Food packaging materials requiring FDA-compliant stabilization.

  4. Medical-grade polyolefin devices and tubing where extractables and biocompatibility are critical.

  5. Recycled polymer streams needing robust oxidative stability during reprocessing.

Specifications Of SI Group AT-330 E-330 Antioxidant

Chemical TypeHindered phenol
Product FormPellets
AppearanceOff-white to light tan free-flowing pellets
Melting Range50–60 °C
Primary ApplicationsPolyolefins, styrenics, elastomers
Key FeaturesThermal stability, low volatility, regulatory compliance
BenefitsExtended service life, reduced discoloration, enhanced recyclability
Storage ConditionsStore in cool, dry place below 30 °C; protect from moisture and direct sunlight


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