IFR-MP02 Melamine Polyphosphate: High Efficiency Halogen-Free Flame Retardant Buy IFR-MP02 Melamine Polyphosphate: High Efficiency Halogen-Free Flame Retardant IFR-MP02 is a 100% halogen-free environmentally friendly flame retardant based on phosphorus-nitrogen synergistic technology, which is classified as melamine polyphosphate series. It can exert flame retardant effect independently or cooperate with other flame retardant monomers, helping polymer materials pass UL94-V0