In the pursuit of maximum durability and extended service life for polymer-based products, formulators often seek synergistic solutions that provide a more robust defense against environmental stressors. Ultraviolet (UV) radiation is a primary culprit in polymer degradation, leading to material breakdown and aesthetic failure. While Hindered Amine Light Stabilizers (HALS) like our Light Stabilizer 622 are highly effective radical scavengers, their performance can be significantly enhanced when used in conjunction with UV absorbers. As a dedicated manufacturer and supplier in China, we offer HALS 622 and insights into achieving optimal protection through additive synergy.

Light Stabilizer 622 (HALS 622) operates by scavenging free radicals formed during the photo-oxidation process. This mechanism effectively interrupts the degradation cycle initiated by UV exposure. However, UV absorbers work on a different principle: they absorb harmful UV radiation and dissipate it as heat, preventing it from reaching and damaging the polymer backbone. By combining these two distinct mechanisms, a more comprehensive and effective stabilization system is achieved.

The synergy between HALS 622 and UV absorbers, such as benzotriazoles (e.g., UV 326, UV 329) or benzophenones, is well-documented. UV absorbers can act as a primary shield, reducing the initial UV flux that reaches the polymer. HALS then handle any free radicals that are still generated or formed through other degradation pathways. This combined approach is particularly beneficial for applications that experience intense or prolonged UV exposure. For instance, in automotive exteriors, construction materials, or agricultural films, this synergistic system ensures superior color retention, gloss stability, and mechanical property preservation over time.

When you buy Light Stabilizer 622 from us, you are investing in a product known for its low volatility and minimal migration, characteristics that are crucial for maintaining the effectiveness of any combined stabilization system. This ensures that both the HALS and any co-applied UV absorbers remain within the polymer matrix, providing continuous protection. For procurement managers, understanding these synergistic effects is key to selecting the most cost-effective and high-performance additive packages.

As a trusted supplier in China, we provide HALS 622 at competitive prices. We can also offer guidance on selecting appropriate UV absorbers to complement our HALS for your specific polymer formulation. Whether you are working with polypropylene (PP), polyethylene (PE), ABS, or polyurethanes (PU), integrating a synergistic blend of UV absorbers and HALS 622 is a proven strategy to maximize product lifespan and performance. Contact us today to discuss your needs and explore how our additives can elevate your product's resistance to UV degradation.