Chimassorb 944
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.
1. UV stabilization of outdoor plastics: Chimassorb 944 is used to extend the service life of outdoor plastics (e.g., polypropylene, polyethylene, polyurethanes and PVC) by trapping radicals formed under UV exposure and thereby slowing chain scission and oxidation. This results in reduced chalking, discoloration and mechanical degradation for products such as housings, outdoor furniture and agricultural films. It also helps users improve process consistency, manage production risk, and maintain predictable results across scale-up, routine manufacturing, and finished-product quality checks for Chimassorb 944 (CAS 71878-19-8).
2. Coatings and paints: incorporation of Chimassorb 944 into coatings for metal, wood and composite substrates enhances color retention and gloss preservation. The HALS action is particularly effective in pigmented and binder-rich systems, prolonging aesthetic and protective performance in exterior architectural and industrial coatings. It also helps users improve process consistency, manage production risk, and maintain predictable results across scale-up, routine manufacturing, and finished-product quality checks for Chimassorb 944 (CAS 71878-19-8).
3. Fibers and textiles: used in fiber spinning and textile finishing, Chimassorb 944 improves the lightfastness of synthetic fibers and dyed materials. It helps maintain tensile strength and appearance in outdoor textiles, awnings, carpeting and upholstery subjected to sunlight. It also helps users improve process consistency, manage production risk, and maintain predictable results across scale-up, routine manufacturing, and finished-product quality checks for Chimassorb 944 (CAS 71878-19-8).
4. Masterbatches and polymer compounds: Chimassorb 944 is commonly supplied in masterbatch form or as an additive during compounding to ensure homogeneous dispersion and consistent stabilization. It works synergistically with UV absorbers and antioxidants to provide broad-spectrum protection against photothermal aging. It also helps users improve process consistency, manage production risk, and maintain predictable results across scale-up, routine manufacturing, and finished-product quality checks for Chimassorb 944 (CAS 71878-19-8).
5. Long-term weathering and cost-effectiveness: HALS like Chimassorb 944 do not absorb UV but neutralize degradation intermediates, providing persistent protection that does not bleach or lose effectiveness rapidly. This long-term mechanism reduces maintenance and replacement costs for protected articles. It also helps users improve process consistency, manage production risk, and maintain predictable results across scale-up, routine manufacturing, and finished-product quality checks for Chimassorb 944 (CAS 71878-19-8).
6. Handling and supplier support: KieRay Chem provides Chimassorb 944 with COA, recommended loading guidelines and dispersion advice. Benefits include improved outdoor durability, compatibility with common polymers, and technical support to optimize combined stabilizer systems for specific environmental exposure profiles. It also helps users improve process consistency, manage production risk, and maintain predictable results across scale-up, routine manufacturing, and finished-product quality checks for Chimassorb 944 (CAS 71878-19-8).
Product Name: Chimassorb 944
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