Used as a reinforcing filler in composites, plastics, and resins to improve strength, stiffness, and heat resistance. Commonly added to polymers for automotive parts, electrical insulators, and construction materials. Enhances dimensional stability and reduces shrinkage in molded products. Also utilized in coatings and adhesives for improved abrasion resistance and durability. Suitable for 3D printing materials to increase mechanical performance. Non-conductive and chemically inert, making it ideal for electronic enclosures and insulation applications.