In the intricate world of material formulation, achieving optimal light stability is a critical challenge that impacts the performance, durability, and aesthetics of countless products. For compound formulators working with polymers, coatings, and other sensitive materials, understanding and mitigating the effects of ultraviolet (UV) radiation is paramount. UV exposure can trigger a cascade of degradation reactions, leading to undesirable changes in color, physical properties, and overall integrity. This is where the strategic use of high-performance UV stabilizers, such as UV Absorber UV-328, becomes essential.

UV Absorber UV-328 (CAS: 25973-55-1) is a highly effective benzotriazole-based UV absorber that offers robust protection against UV-induced degradation. Its molecular structure allows it to efficiently absorb UV radiation, particularly in the wavelengths that are most damaging to polymers and coatings, with a strong peak absorption at 345nm. This characteristic makes it an invaluable additive for compound formulators aiming to enhance the weatherability and lifespan of their materials. The compatibility of UV-328 with a wide array of polymers, including polyolefins, PVC, polyesters, and polycarbonates, ensures its versatility across diverse applications.

As a leading manufacturer and supplier, we are dedicated to providing formulators with the high-quality ingredients needed to create superior products. Our UV Absorber UV-328 is produced with a minimum purity of 99%, ensuring consistent performance and predictable results. Its low volatility and excellent thermal stability are significant advantages during the compounding and processing stages, minimizing material loss and maintaining its protective efficacy. Furthermore, its high wash resistance guarantees that the UV protection remains effective even after repeated cleaning or exposure to solvents.

For compound formulators looking to buy UV Absorber UV-328, understanding the optimal dosage is key. While typical use levels are around 0.1% to 1.0% by weight, specific recommendations can vary based on the polymer, the intended application, and the severity of UV exposure. Combining UV-328 with other light stabilizers, such as hindered amine light stabilizers (HALS) and antioxidants, can further enhance performance by providing a multi-layered defense against photodegradation and thermal oxidation. This synergistic approach is often employed for demanding applications, such as automotive exterior parts and outdoor construction materials.

We encourage compound formulators to consider UV Absorber UV-328 as a reliable solution for their light stability challenges. As a trusted supplier, we offer competitive pricing and are committed to supporting your innovation with high-quality chemical products. To learn more about our offerings or to inquire about purchasing UV Absorber UV-328, please contact our expert team. We are here to help you find the best solutions for your formulation needs.