UV-123 is a low-alkalinity hindered amine light stabilizer widely used in acrylic resins, polyurethane (PU), sealants, adhesives, rubber, blends of thermoplastic elastomers (TPE) and thermoplastic polyolefins (TPO), polyvinyl chloride (PVC), polystyrene (PS), polypropylene (PP), and other unsaturated resins.

UV-123 can undergo crosslinking reactions with other components in coating formulations; therefore, it is recommended for use in coatings and exhibits excellent tolerance to acidic components, flame retardants, sulfur, and catalyst residues.