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

Rianox RIANOX UV-928 Benzotriazole UV Absorber

Rianox RIANOX UV-928 is a high-performance benzotriazole-based UV absorber from Rianox’s specialty additives series, offering exceptional photostability and thermal resistance for polymers, coatings, and adhesives. It effectively prevents UV-induced degradation, yellowing, and mechanical property loss while maintaining clarity and compatibility in demanding applications.
  • rianox rianox uv 928 benzotriazole uv absorber_41fe6a1f
  • rianox rianox uv 928 benzotriazole uv absorber_41fe6a1f

Features Of Rianox RIANOX UV-928 Benzotriazole UV Absorber

  1. Highly effective UV absorption in the 270–380 nm range, providing robust protection against photodegradation.

  2. Excellent thermal and hydrolytic stability, ensuring consistent performance during high-temperature processing and long-term service life.

  3. Good compatibility with a wide range of polymers including polyolefins, ABS, PC, and PVC.

  4. Low volatility and minimal migration, supporting durable surface protection and reduced blooming risk.

  5. Non-discoloring formulation — maintains clarity and color fidelity in transparent and light-colored applications.

Typical Applications Of Rianox RIANOX UV-928 Benzotriazole UV Absorber

  1. Automotive interior components (dashboards, trim, seating foams).

  2. Outdoor construction materials (PVC window profiles, roofing membranes, geotextiles).

  3. Coatings and inks for industrial and decorative applications requiring UV resistance.

  4. Polyolefin-based agricultural films and greenhouse covers.

  5. Engineering plastics used in consumer electronics housings and outdoor enclosures.

Specifications Of Rianox RIANOX UV-928 Benzotriazole UV Absorber

Chemical TypeBenzotriazole derivative
Product FormFree-flowing white to off-white crystalline powder
AppearanceWhite to pale yellow crystalline solid
Molecular WeightApprox. 349 g/mol
Melting Point135–140 °C
SolubilitySoluble in common organic solvents (e.g., chloroform, THF, ethyl acetate); low solubility in water
Primary ApplicationsUV stabilization of thermoplastics, coatings, adhesives, and elastomers
Key FeaturesHigh UV absorbance, low volatility, excellent polymer compatibility


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