Dicyclopentyldichlorosilane is primarily used in the synthesis of organosilicon compounds. It serves as a key intermediate in the production of silicone polymers and resins, which are widely utilized in coatings, adhesives, and sealants due to their thermal stability and water resistance. Additionally, it is employed in the modification of surfaces to impart hydrophobic properties, making it valuable in applications like water-repellent treatments for textiles and construction materials. In the field of electronics, it is used in the fabrication of semiconductor devices, where it aids in creating protective layers and enhancing performance. Its role in cross-linking agents also makes it essential in the development of high-performance elastomers and rubbers.