Used as a thickening agent in paints, coatings, and adhesives to prevent sagging and settling. Enhances mechanical strength and abrasion resistance in rubber and plastic products. Acts as a free-flow agent in powders and granules. Improves stability and viscosity in cosmetics and personal care products. Widely used in sealants and caulks to control rheology and improve performance under stress. Also serves as a reinforcing filler in silicone elastomers and high-performance composites.