Light Stabilizer 622

Product Overview

Light Stabilizer 622, identified by CAS number 65447-77-0, represents a advanced class of oligomeric hindered amine light stabilizers (HALS). This specialized chemical additive is engineered to provide superior protection against photodegradation in a wide variety of polymeric materials. Unlike monomeric stabilizers, the oligomeric structure of Light Stabilizer 622 ensures significantly reduced volatility and minimal migration during the product lifecycle, making it an ideal choice for demanding industrial applications where long-term durability is paramount.

As a high-efficiency radical scavenger, this stabilizer interrupts the degradation cycle caused by ultraviolet radiation, thereby preserving the mechanical properties and aesthetic appearance of plastics and coatings. It is particularly valued in formulations requiring compliance with strict volatility standards while maintaining high transparency and color stability.

Key Performance Advantages

• Exceptional low volatility characteristics suitable for high-temperature processing.
• Minimal migration ensures long-term stabilization without surface blooming.
• Excellent compatibility with a broad range of polymers including polyolefins and engineering plastics.
• Synergistic effects when combined with UV absorbers such as UV 326 or UV 329.
• Enhances heat resistance and light aging resistance in final products.
• Maintains high transmittance in visible light spectra for clear applications.

Technical Specifications

Industrial Applications

Light Stabilizer 622 is extensively utilized in the stabilization of polyethylene (PE), polypropylene (PP), polyurethane (PU), polyoxymethylene (POM), polyamide, and polyester elastomers. Its robust performance profile makes it suitable for use in pigment and carbon black systems, which are common in outdoor applications. Typical end uses include high-performance adhesives, sealants, elastomers, fibers, and films where exposure to sunlight and weather elements is inevitable.

The stabilizer is highly effective in automotive components, agricultural films, and industrial packaging materials. When formulated with antioxidants and ultraviolet absorbers, it creates a comprehensive protection system that further improves product quality and extends service life. This makes it a critical component for manufacturers seeking to enhance the weatherability of their polymer-based products.

Storage and Handling

This product exhibits good storage stability under recommended conditions. To maintain optimal quality, high temperature and humidity should be avoided during storage and transportation. It should be stored in a cool, dry, and ventilated place to prevent moisture absorption and heat exposure. Standard packaging consists of 25kg drums, ensuring safe and efficient handling for bulk industrial operations. Always refer to the safety data sheet for specific handling instructions and regulatory compliance information.