APP -205

APP-205 by Oceanchem Group is ammonium polyphosphate. Acts as a flame retardant. It is based on APP-201. Develops its effectiveness through phosphorus / nitrogen synergism. Exhibits high processing stability when incorporated into thermoplastics. It differs in its mode of action from chlorine or bromine-containing flame retardants by achieving its effect through intumescence. The thermoplastic material foams on exposure to flame. The carbon foam layer so formed protects the polymer through its heat-insulating effect, reduces further oxygen access and prevents dripping of the thermoplastic. APP-205 by Oceanchem Group can be used in PP, PP copolymers and PP blends.