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Magnesium Hydroxide (Ecopiren)
Ecopiren is a natural magnesium hydroxide (brucite) which is milled and classified in a special way that could be used as an effective mineral flame retardant and smoke absorber for polymer compounds. Magnesium hydroxide is able to perform in higher processing temperatures where alumina trihydrate (ATH) leaves off. While functioning in the exact same manner as aluminatrihydrate, there is one key difference: magnesium hydroxide undergoes endothermic decomposition when water is released at 330°C. That means it is thermally stable at temperatures up to 110°C higher than alumina trihydrate.
Through the fact of the high decomposition temperature of magnesium hydroxide, Ecopiren can be used in various, also higher melting polymers, as a mineral flame retardant. Key applications are e.g. cables, waterproof roofing membranes, aluminium composites and diverse technical compounds.