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

Solvay CYASORB THT 4611 Light Stabilizer

Solvay CYASORB THT 4611 is a high-performance hindered amine light stabilizer (HALS) from Solvay’s CYASORB portfolio. Designed for polyolefins and engineering plastics, it delivers exceptional UV resistance, thermal stability, and long-term weatherability without compromising processing or mechanical properties. Its low volatility and excellent compatibility ensure consistent protection in demanding outdoor applications.
  • solvay cyasorb tht 4611 light stabilizer_d40abf9f
  • solvay cyasorb tht 4611 light stabilizer_d40abf9f

Features Of Solvay CYASORB THT 4611 Light Stabilizer

  1. High-performance hindered amine light stabilizer (HALS) with synergistic thioether functionality for enhanced long-term UV resistance.

  2. Excellent compatibility with polyolefins, including PP and HDPE, enabling uniform dispersion without blooming or migration.

  3. Thermal stability up to 280 °C supports high-temperature processing such as injection molding and extrusion.

  4. Low volatility and minimal odor, suitable for applications requiring low VOC emissions and improved workplace safety.

  5. Resistant to extraction by polar solvents and aqueous media, ensuring durability in outdoor and demanding end-use environments.

Typical Applications Of Solvay CYASORB THT 4611 Light Stabilizer

  1. Automotive interior and exterior plastic components exposed to sunlight and elevated temperatures.

  2. Outdoor agricultural films and geomembranes requiring extended UV resistance and mechanical retention.

  3. Polypropylene fibers and nonwovens used in geotextiles, upholstery, and technical textiles.

  4. HDPE blow-molded containers for household and industrial chemicals where color stability is critical.

  5. Rotomolded tanks and playground equipment subject to prolonged weathering and thermal cycling.

Specifications Of Solvay CYASORB THT 4611 Light Stabilizer

Chemical TypeHindered amine light stabilizer (HALS) with thioether co-stabilizer
Product FormPellets
AppearanceOff-white to light beige free-flowing pellets
Primary ApplicationsPolyolefins (PP, HDPE, LDPE), polypropylene fibers, and rotomolded products
Key FeaturesSynergistic HALS/thioether system, low volatility, high thermal stability
BenefitsExtended service life under UV exposure, reduced surface cracking and embrittlement, improved color retention
Recommended Loading Range0.1–0.5 wt% depending on substrate and performance requirements
Storage ConditionsStore in original unopened packaging at room temperature; protect from moisture and direct sunlight


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