Chemical name : Bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate Introduction : UV-770 is a hindered amine light stabilizer (HALS), is used for polypropylene (tapes, films, thick items), polyethlene (thin and thick items) styrenics (acrylonitrile butadienestyrene, polystyrene, high impact polysyrene), polyurethane, polyacetaL, polyamide. Molecular Weight : 481 Appearance : white crystals Melting Range : 81-85 °C Flashpoint : >150 °C pecific Gravity(20 °C ) : 1.05 g/cm3