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

Rianox RIANOX UV-326 Benzotriazole UV Absorber

Rianox RIANOX UV-326 is a high-performance benzotriazole-type UV absorber from Rianox’s premium stabilization series, offering exceptional light stability and thermal resistance for polymers like ABS, PC, and coatings. It provides long-term protection against UV-induced degradation, yellowing, and embrittlement while maintaining clarity and color fidelity in demanding outdoor applications.
  • rianox rianox uv 326 benzotriazole uv absorber_2e5e6bf9
  • rianox rianox uv 326 benzotriazole uv absorber_2e5e6bf9

Features Of Rianox RIANOX UV-326 Benzotriazole UV Absorber

  1. Highly effective UV absorber based on 2-(2H-benzotriazol-2-yl)-4-tert-butylphenol chemistry.

  2. Excellent thermal and hydrolytic stability for long-term performance in demanding processing conditions.

  3. Low volatility and minimal migration, ensuring consistent protection in polymeric matrices.

  4. Broad-spectrum absorption covering UVA and UVB ranges (290–400 nm).

  5. Compatible with a wide range of polymers including polyolefins, engineering plastics, and coatings.

Typical Applications Of Rianox RIANOX UV-326 Benzotriazole UV Absorber

  1. Polypropylene (PP) and polyethylene (PE) automotive interior parts.

  2. Exterior plastic components for construction and agricultural equipment.

  3. Transparent polycarbonate (PC) glazing and optical films.

  4. UV-stabilized PVC profiles and rigid sheets for outdoor applications.

  5. High-performance industrial coatings and solvent-based lacquers.

Specifications Of Rianox RIANOX UV-326 Benzotriazole UV Absorber

Chemical TypeBenzotriazole derivative
Product FormOff-white to light yellow crystalline powder
AppearanceFree-flowing crystalline solid
Molecular FormulaC17H19N3O
Molecular Weight281.35 g/mol
Melting Point135–139 °C
SolubilitySoluble in common organic solvents (e.g., chloroform, THF, toluene); insoluble in water
Primary ApplicationsUV stabilization of thermoplastics, coatings, and adhesives


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