MFR-700X is a microencapsulated red phosphorus. After advanced multi-layer coating process, a continuous and dense polymer protective film is formed on the surface of red phosphorus, which improves the compatibility with polymer materials and impact resistance, and is safer and does not produce toxic gases during processing. The red phosphorus treated by microcapsule technology has high fineness, narrow particle size distribution and good dispersion. Microencapsulated red phosphorus with its high efficiency, halogen-free, low smoke, low toxicity, can be widely used in PP, PE, PA, PET, EVA, PBT, EEA and other thermoplastic resins, epoxy, phenolic, silicone rubber, unsaturated polyester and other thermosetting resins, and butadiene rubber, ethylene propylene rubber, fiber and other cable materials, conveyor belts, engineering plastics flame retardant。