For polymer formulators, selecting the right additives is critical to achieving desired product performance, durability, and aesthetic appeal. Among the most vital additives are light stabilizers, essential for protecting polymers from degradation caused by ultraviolet (UV) radiation. Hindered Amine Light Stabilizers (HALS) represent a highly effective class of these compounds. This article delves into the key properties of Light Stabilizer 622, an oligomeric HALS, to help formulators make informed decisions. As a leading manufacturer and supplier, we provide insights into why this product is a top choice.

Light Stabilizer 622, identified by CAS number 65447-77-0, is characterized by its oligomeric, or polymeric, structure. This is a crucial differentiator. Unlike monomeric HALS, which have lower molecular weights, oligomeric HALS exhibit significantly reduced volatility and migration. This means that during high-temperature processing or throughout the product's service life, the stabilizer remains effectively locked within the polymer matrix. For a formulator, this translates to more predictable and long-lasting protection against UV-induced degradation, such as color change, loss of mechanical strength, and surface cracking.

Another key property is its excellent resistance to extraction. Whether the final product comes into contact with solvents, cleaning agents, or even food components (where relevant regulatory approvals are met), Light Stabilizer 622 is less likely to be washed out or leached away. This ensures sustained performance and contributes to product safety and compliance.

Furthermore, Light Stabilizer 622 demonstrates a powerful synergistic effect when used in combination with other additives, particularly antioxidants and UV absorbers. This means that when formulated together, these components work more effectively than they would individually, offering a more comprehensive defense against various degradation mechanisms. This synergistic capability allows formulators to create highly robust material systems with extended service lives.

The product’s versatility extends to its application in a wide array of polymers, including polyethylene (PE), polypropylene (PP), elastomers, polyurethanes, and more. Its effectiveness in pigmented systems and its low interaction with carbon black make it suitable for a broad range of aesthetic and functional requirements. For formulators looking to buy Light Stabilizer 622, understanding these properties helps in designing formulations that meet demanding performance criteria. We encourage formulators to reach out to us for quotes and samples, enabling them to experience the benefits of this advanced HALS firsthand.