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

Solvay CYASORB UV-1164 UV Absorber

Solvay CYASORB UV-1164 is a high-performance benzotriazole-based UV absorber offering exceptional photostability and thermal resistance. Designed for demanding polymer applications—including polyolefins, engineering plastics, and coatings—it delivers long-term protection against UV degradation without compromising clarity or mechanical properties. Its low volatility and excellent compatibility ensure consistent performance in extrusion and injection molding processes.
  • solvay cyasorb uv 1164 uv absorber_19f60cb5
  • solvay cyasorb uv 1164 uv absorber_19f60cb5

Features Of Solvay CYASORB UV-1164 UV Absorber

  1. High molecular weight benzotriazole UV absorber offering exceptional photostability and long-term UV protection.

  2. Low volatility and excellent compatibility with engineering thermoplastics including polycarbonate, ABS, and polyesters.

  3. Minimal migration and blooming, ensuring surface integrity and clarity retention in demanding applications.

  4. Thermally stable up to 300 °C, enabling safe processing during extrusion, injection molding, and compounding.

  5. Non-discoloring performance—maintains original hue and transparency without yellowing under UV exposure.

Typical Applications Of Solvay CYASORB UV-1164 UV Absorber

  1. Automotive interior and exterior components (e.g., instrument panels, grilles, lamp lenses).

  2. Outdoor construction materials such as window profiles, cladding, and roofing membranes.

  3. Consumer electronics housings requiring high-gloss, color-stable surfaces.

  4. Medical device enclosures where UV resistance and regulatory compliance are critical.

  5. Optical-grade transparent plastics used in signage, lighting diffusers, and display covers.

Specifications Of Solvay CYASORB UV-1164 UV Absorber

Chemical TypeBenzotriazole derivative
Product FormFree-flowing crystalline powder
AppearanceOff-white to light tan crystalline solid
Molecular WeightApprox. 539 g/mol
Melting Point205–215 °C (determined by DSC)
Solubility (25 °C)Good in chlorinated hydrocarbons, aromatic solvents; limited in aliphatic hydrocarbons and water
Primary ApplicationsUV stabilization of engineering thermoplastics and high-performance polymers
Key FeaturesHigh photostability, low volatility, excellent polymer compatibility, non-staining


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