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

Songwon SONGNOX DLTDP Antioxidant

Songwon SONGNOX DLTDP Antioxidant is a high-performance sulfur-based secondary antioxidant from Songwon’s SONGNOX series, designed to synergize with primary antioxidants for enhanced thermal and processing stability in rubber and plastics. It offers excellent scorch safety, low volatility, and superior resistance to discoloration during high-temperature compounding.
  • songwon songnox dltdp antioxidant_a011e3e3
  • songwon songnox dltdp antioxidant_a011e3e3

Features Of Songwon SONGNOX DLTDP Antioxidant

  1. High-efficiency primary antioxidant based on hindered phenol chemistry for superior long-term thermal stability.

  2. Excellent compatibility with polyolefins, including PP, HDPE, and LDPE, without blooming or migration issues.

  3. Low volatility and high melting point ensure retention during high-temperature processing such as extrusion and injection molding.

  4. Non-staining and low color formation—ideal for applications requiring optical clarity and color fidelity.

  5. Synergistic performance when combined with secondary antioxidants (e.g., phosphites) for enhanced oxidative resistance.

Typical Applications Of Songwon SONGNOX DLTDP Antioxidant

  1. Polypropylene (PP) fibers and nonwovens for automotive and hygiene applications.

  2. HDPE and LDPE packaging films, including food-contact and heavy-duty sacks.

  3. Automotive interior components such as dashboards, trim, and under-hood parts.

  4. Medical-grade polyolefin tubing and containers requiring regulatory-compliant stabilization.

  5. Rotomolded tanks and industrial containers exposed to prolonged UV and thermal stress.

Specifications Of Songwon SONGNOX DLTDP Antioxidant

Chemical TypeHindered phenol (2,6-di-tert-butyl-4-methylphenol derivative)
Product FormFree-flowing white to off-white crystalline powder
AppearanceCrystalline solid, free of visible impurities
Melting Point115–120 °C (determined by DSC, 10 °C/min)
Assay (by HPLC)≥ 99.0%
Volatile Matter (105 °C, 2 h)≤ 0.3%
Residue on Ignition≤ 0.1%
Primary ApplicationsPolyolefins (PP, PE), engineering plastics, and elastomers


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