UV-622 is a polymeric high-molecular-weight hindered amine light stabilizer with resistance to migration, extraction, gas fading, and low volatility, and offers good thermal stability.

It shows synergistic effects with antioxidants and ultraviolet absorbers and has good compatibility with resins.

It is widely used in polypropylene (PP), polyethylene (PE), polystyrene (PS), ABS (ABS), polyurethane (PU), polyoxymethylene (POM), thermoplastic elastomers (TPE), and related materials.