MICRAL 931 is a high surface area alumina trihydrate product with a very precise, ultrafine particle size distribution. It has a lower cost replacement for precipitated ATH and lower soluble soda and free moisture content. MICRAL 931 provides improved handling properties, dependable delivery and long-term availability. It offers exceptional brightness and excellent suspension. As an economical halogen-free smoke suppressor/flame retardant, MICRAL 931 is suitable for applications that require surface modifications to aid processing and enhance physical properties. These include silanes, stearates and wetting agents. MICRAL 931 can be used in applications that require a filler material to improve mechanical properties, thermal stability and durability.