March 17, 2026. As demand for green and safe materials keeps rising, inorganic eco-friendly flame retardants have drawn wide industrial attention. Aluminum hydroxide (ATH), a leading halogen-free flame retardant, delivers reliable protection through three physical mechanisms: endothermic decomposition, combustible gas dilution, and barrier formation. When heated to 200–300℃, it decomposes to absorb substantial heat, releases water vapor to dilute oxygen and fuels, and forms a dense alumina layer that insulates heat and blocks oxygen. It produces no toxic fumes during combustion, making it widely used in plastics, rubber, coatings and other materials. Typical loading ranges from 30% to 50% for general flame retardancy. For UL94 V-0 performance, ATH alone requires 60%–70%, while blending with zinc borate or magnesium hydroxide reduces it to 45%–55%, balancing flame resistance and mechanical properties. Driven by stricter environmental regulations and higher fire-safety standards, ATH is becoming a preferred choice in electronics, wires & cables, construction materials and more, accelerating the shift toward safer and greener advanced materials.
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