Speciality Chemicals

Light Stabilizer 622

  • CAS No.65447-77-0
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

Light Stabilizer 622 is a high-performance polymeric hindered amine light stabilizer designed for superior UV protection in polyolefins and engineering plastics.

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Product Technical Details

Product Overview

Light Stabilizer 622 represents a advanced class of polymeric hindered amine light stabilizers (HALS) engineered to provide exceptional longevity and durability to polymer matrices. As a high molecular weight additive, it offers significant advantages over monomeric stabilizers, particularly regarding resistance to extraction and migration during prolonged exposure to harsh environmental conditions. This product is specifically formulated to protect plastics from photodegradation caused by ultraviolet radiation, thereby maintaining mechanical properties and aesthetic appearance over extended service life.

Our manufacturing process ensures high purity and consistent quality, making this stabilizer an ideal choice for demanding applications in the rubber, plastic, coating, and adhesive industries. The polymeric structure enhances compatibility with various resin systems while minimizing volatility losses during high-temperature processing.

Technical Specifications

The following table outlines the key physical and chemical characteristics that define the quality standards of Light Stabilizer 622. Each batch undergoes rigorous testing to ensure compliance with international specifications.

Test ParameterUnitSpecification
Appearance-White Powder
Melting Range50.00-70.00
Volatiles%0.50 Max
Ash Content%0.10 Max
Clarity-Clear
Transmittance (450nm)%95.00 Min
Transmittance (500nm)%97.00 Min

Key Performance Features

Designed for versatility and efficiency, this light stabilizer delivers multiple technical benefits that enhance the overall performance of the final polymer product. The unique chemical structure provides robust protection without compromising other material properties.

  • Non-discoloring formulation ensures the final product retains its original color even after prolonged UV exposure.
  • Low volatility characteristics prevent loss of additive during high-temperature processing steps like extrusion or molding.
  • Excellent resistance to migration ensures long-term stability and prevents blooming on the surface of the finished goods.
  • Low basicity reduces unwanted interactions with acidic pigments, catalysts, or other stabilizers commonly used in complex formulations.
  • Extensive regulatory clearances allow for use in applications involving food contact materials where compliance is critical.

Industrial Applications

Light Stabilizer 622 is effective across a broad spectrum of polymers and industrial sectors. It is particularly useful in polyethylene applications including injection molding, rotational molding, film production, and tape manufacturing. Additionally, it performs exceptionally well in EVA, PP fibers, polyurethanes, polyacetals, elastomers, adhesives, and sealants. The product is also recognized as an excellent light stabilizer for systems containing carbon black, providing synergistic effects in dark-colored compounds.

Storage and Handling

To maintain optimal quality, keep the container tightly closed and store in a cool, dry place away from direct sunlight and moisture. Proper handling ensures the material remains free-flowing and retains its specified physical characteristics throughout its shelf life. We recommend following standard industrial hygiene practices when handling chemical additives.