Irganox HP 2921 Blend of organophosphite, lactone and hindered phenolic Ciba Antioxidants >> Lactone Antioxidants >> Phenolic Antioxidants >> Phosphite Rubber - Elastomer (Chloroprene, Butyl …) PU - Prepolymers Styrene copolymers ADHESIVE High performance melt processing stabilizer system Synergistic blend of a lactone, an organophosphite and a phenolic antioxidant. Provides processing and long-term thermal stability in a variety of substrates and applications. Used in adhesives Offers superior performance and increased productivity improved melt flow control low initial color and outstanding color maintenance superior effectiveness at high processing temperature for demanding applications lower use levels leading to improved additive compatibility Provides long-term thermal stability preventing thermo-oxidative degradation during service life Use level: 0.05-0.15%. Synergistic blend of a lactone, an organophosphite and a phenolic antioxidant. Used as a high performance melt processing stabilizer system in adhesives. Provides outstanding processing and long-term thermal stability. Offers improved melt flow control, low initial color and outstanding color maintenance, superior effectiveness at high processing temperature and prevention of thermo-oxidative degradation during service life. <br> Use level: 0.05-0.15%.