MOLDX P12 is a non-halogen, optimized aluminum hydroxide product designed for applications such as pultrusion, resin infusion and vacuum bag molding. MOLDX P12 has a narrow particle size distribution that has a small particle top size. This allows all the ATH particles to flow readily throughout the reinforcement. An optimized particle size distribution with a small particle top size is a major advance for applications. The pultruder can obtain a very low pull force at high content (> 50% by weight) especially when compared to other standard ATH products. MOLDX P12 allows formulators to pass stringent certification tests without the use of halogenated flame retardants. MOLDX P12 provides benefits such as improved workability, durability and compliance with regulations for applications.