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

SI Group AT-245 Antioxidant

SI Group AT-245 Antioxidant is a high-performance hindered phenolic antioxidant from SI Group’s AT-series, designed for polyolefins and elastomers. It offers exceptional thermal stability, low volatility, and synergistic performance with phosphites. Widely used in PP, PE, and TPE applications to prevent oxidative degradation during processing and long-term service life.
  • si group at 245 antioxidant_c831b59d
  • si group at 245 antioxidant_c831b59d

Features Of SI Group AT-245 Antioxidant

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

  2. Low volatility and superior migration resistance in polymer matrices, ensuring long-term protection.

  3. Compatible with a broad range of thermoplastics, elastomers, and engineering resins.

  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-245 Antioxidant

  1. Polyolefins (PP, HDPE, LDPE) used in automotive interior components.

  2. Food packaging films and containers requiring FDA-compliant stabilization.

  3. Medical-grade polypropylene and polyethylene devices and tubing.

  4. Wire & cable insulation materials exposed to elevated service temperatures.

  5. Recycled polymer streams where enhanced melt stability and color retention are critical.

Specifications Of SI Group AT-245 Antioxidant

Chemical TypeHindered phenol
Product FormFree-flowing white to off-white powder
AppearanceCrystalline granular solid
Melting Range120–126 °C
Assay (by HPLC)≥ 99.0%
Volatile Matter (105 °C, 2 h)≤ 0.3%
Heavy Metals (as Pb)≤ 5 ppm
Primary ApplicationsPolyolefins, medical polymers, food-contact packaging


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