Irganox B 225 Blend of tris(2,4-ditert-butylphenyl)phosphite and pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) Ciba Antioxidants >> Phenolic Antioxidants >> Phosphite PU - Prepolymers Ethylene co-terpolymers - solid (EVA, EMA...) Polyolefins (PE, PP…) ADHESIVE IRGANOX B 225 - a processing and long-term thermal stabilizer system - is a syner-gistic blend of IRGAFOS 168 and IRGANOX 1010. 50 % IRGAFOS 168 ; 50 % IRGANOX 1010 IRGANOX B 225 is used in polyolefins and olefin-copolymers such as polyethylene, polypropylene, polybutene and ethylene-vinylacetate copolymers. The blends can also be used in other polymers such as engineering plastics, styrene homo- and copolymers, polyurethanes, elastomers, adhesives, and other organic substrates. IRGANOX B 225 can be used in combination with light stabilizers of the TINUVIN and CHIMASSORB range. IRGANOX B 225 is a convenient blend addressing a range of stabilization needs. The relatively high phenolic antioxidant content of IRGANOX B 225 addresses applications requiring more long-term thermal stability. In the recommended applications IRGANOX B 225 provides significant advantages, such as · Maintenance of original melt flow · Low color formation · Improvement of long-term-thermal stability IRGAFOS 168 - an organophosphite of low volatility and particularly resistant to hydrolysis -protects during processing organic polymers which are prone to oxidation. IRGANOX 1010 -a hindered phenolic antioxidant - contributes synergistically to the polymer’s stabilization during processing and provides long-term thermal stability by preventing thermo-oxidative degradation during service life. Additional performance improvements can be achieved in synergistic combinations with other Ciba additives (e.g. thioethers). Blends of IRGANOX 1010 and IRGAFOS 168 with HP-136 (IRGANOX HP products) are particularly effective. Blend of an organophosphite and a hindered phenolic antioxidant. Used as a processing and long-term thermal stabilizer system in adhesives. Provides maintenance of original melt flow, low color formation, improvement of long-term-thermal stability. Possesses low volatility and resistance to hydrolysis. Use level : 0.1-0.25 %.