In March 2026, the flame retardant industry witnessed a comprehensive sorting of technologies and categories. Insiders divided the mainstream commercial flame retardants into seven major categories with the help of AI tools. Halogen-free products such as inorganic hydroxide/oxide/synergistic flame retardants and silicon-based and other special flame retardants have become the focus, in line with the global green and high-end development trend of flame retardants. Among them, aluminum hydroxide is the world's most used inorganic flame retardant in inorganic hydroxides, and magnesium hydroxide is suitable for polyolefin substrates due to its high temperature resistance, while zinc stannate can replace traditional halogen-based synergists. As the main force of halogen-free, silicon-based flame retardants include polymethylphenylsiloxane, POSS and other products, with char formation and anti-dripping functions. Bio-based and integrated intumescent flame retardants have further enriched halogen-free categories. At present, with the implementation of the EU halogen restriction policy and the surging demand in the new energy field, the supply and demand gap of halogen-free flame retardants is expanding. Relying on environmental protection and high performance advantages, such products are becoming core materials in electronic and electrical appliances, new energy vehicles and other fields, driving the industry to accelerate the transformation from halogen-based to halogen-free.
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