GY-MG62 Silane Treatment Inorganic Flame Retardant Magnesium Hydroxide,Mg(OH)2, Flame Retardant GY-MG80 Magnesium Hydroxide Flame Retardant CAS No. 1309-42-8 GY-MG40 Magnesium Hydroxide Flame Retardant CAS No. 1309-42-8 CAS No. 1309-42-8 Magnesium Hydroxide Flame Retardant