Chimassorb 944 (CAS 71878-19-8) is a polymeric hindered amine light stabilizer (HALS) designed to protect polymers and coatings from photodegradation. As a high-molecular-weight HALS blend, Chimassorb 944 scavenges photo-generated free radicals and inhibits the chain reactions responsible for color change, cracking and loss of mechanical properties under UV exposure. It is commonly used in outdoor-grade plastics, coatings, fibers and masterbatches where long-term weatherability is required.
KieRay Chem supplies Chimassorb 944 with reliable batch documentation and technical support to help customers select appropriate loading levels for outdoor durability. Our inventory management and packaging options support consistent supply for high-volume compounding and coating operations, and our technical team can advise on synergistic combinations with UV absorbers and antioxidants for optimized protection. Chimassorb 944 is selected by formulators and purchasing teams that need dependable identity, consistent handling, and repeatable performance from batch to batch. KieRay Chem supports customers with responsive technical communication, careful document control, export-ready packing, and stable supply planning. Our team can coordinate specification confirmation, sample evaluation, production scheduling, and international logistics so that this CAS 71878-19-8 material is easier to qualify and reorder.