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

ADEKA ADK STAB PEP-8T Antioxidant

ADEKA ADK STAB PEP-8T is a high-performance phosphite antioxidant from ADEKA’s ADK STAB series, designed for polyolefins and engineering plastics. It offers exceptional melt stability, color retention, and synergistic effects with phenolic antioxidants. Widely used in PP, PE, and ABS processing, it ensures long-term thermal oxidative resistance during extrusion and molding.
  • adeka adk stab pep 8t antioxidant_6365757f
  • adeka adk stab pep 8t antioxidant_6365757f

Features Of ADEKA ADK STAB PEP-8T Antioxidant

  1. High-performance phosphite-based secondary antioxidant with excellent hydrolytic stability.

  2. Effective in suppressing color formation and viscosity increase during high-temperature polymer processing.

  3. Synergistic performance when combined with primary phenolic antioxidants (e.g., ADK STAB AO-20, AO-50).

  4. Low volatility and good compatibility with polyolefins, engineering plastics, and elastomers.

  5. Meets stringent regulatory requirements for food-contact applications under FDA 21 CFR §178.2010 and EU Directive 2002/72/EC.

Typical Applications Of ADEKA ADK STAB PEP-8T Antioxidant

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

  2. Automotive interior components including PP and TPO trim parts.

  3. Food-grade packaging films and containers made from polyolefins.

  4. Blown and cast polyethylene (PE) films for agricultural and industrial use.

  5. Thermoplastic elastomer (TPE) compounds requiring long-term thermal stability.

Specifications Of ADEKA ADK STAB PEP-8T Antioxidant

Chemical TypeTris(2,4-di-tert-butylphenyl) phosphite
Product FormFree-flowing white granules
AppearanceWhite to off-white granular solid
Melting Point195–205 °C (determined by DSC)
Assay (by HPLC)≥ 99.0%
Moisture Content≤ 0.1% (by Karl Fischer titration)
Heavy Metals (as Pb)≤ 5 ppm
Primary ApplicationsPolyolefins, engineering thermoplastics, elastomers


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