MOLDX A400 is a third generation optimized alumina trihydrate product engineered to impart processable viscosities at very high loadings as compared to typical ATH products. MOLDX A400 goes further by incorporating technology that improves the fire retardant and smoke suppressant performance. Less MOLDX A400 is needed to pass the same flame retardant certifications that would be required of an ATH grade, such as MOLDX A110 optimized ATH. The unique characteristics of MOLDX A400 allow compounders to overcome equipment processing limitations via the development of low viscosity formulations that pass the most stringent flame retardant tests. MOLDX A400 optimized ATH is particularly well-suited for applications, and it can also provide low cost flame retardancy and smoke suppression in other processes that contain reinforcing fibers.