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

Rianlon U-pack B225 Antioxidant

Rianlon U-pack B225 is a high-performance antioxidant blend developed by Rianlon Corporation for polymer stabilization. It combines hindered phenol and phosphite synergists to deliver exceptional thermal and oxidative resistance in polyolefins, ABS, and engineering plastics. Widely used in extrusion and injection molding, it ensures long-term color retention and mechanical property preservation under processing and end-use conditions.
  • rianlon u pack b225 antioxidant_0840bd2c
  • rianlon u pack b225 antioxidant_0840bd2c

Features Of Rianlon U-pack B225 Antioxidant

  1. High-performance hindered phenolic antioxidant with synergistic phosphite co-stabilizer for enhanced thermal and oxidative stability.

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

  3. Low volatility and superior processing stability during extrusion, injection molding, and blow molding.

  4. U-pack formulation ensures uniform dispersion and consistent dosing in automated feeding systems.

  5. Meets stringent regulatory requirements for food-contact applications (FDA 21 CFR §178.2010 compliant).

Typical Applications Of Rianlon U-pack B225 Antioxidant

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

  2. Automotive interior components including dashboards, door trims, and under-hood parts.

  3. Food-grade packaging films and containers requiring long-term shelf-life stability.

  4. Rotomolded tanks and industrial containers exposed to elevated temperatures and UV stress.

  5. Recycled polyolefin compounds where stabilization against thermo-oxidative degradation is critical.

Specifications Of Rianlon U-pack B225 Antioxidant

Chemical TypeHindered phenol + phosphite synergistic blend
Product FormFree-flowing white granules
AppearanceOff-white to light beige granules
Primary ApplicationsPolyolefins (PP, PE), engineering plastics, recycled resins
Key FeaturesThermal stability up to 280°C, low extractables, excellent color retention
BenefitsExtended polymer service life, reduced gel formation, improved melt flow consistency
Recommended Dosage0.1–0.3 wt% depending on resin and processing conditions
Storage ConditionsStore in cool, dry place below 30°C; keep container tightly sealed


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