Dichloro(methyl)-n-octylsilane is primarily used as a surface modifying agent in various industrial applications. It is commonly employed to impart hydrophobic properties to surfaces, making it valuable in the treatment of glass, ceramics, and other materials where water repellency is desired. The chemical is also utilized in the production of silicone-based polymers and resins, where it acts as a key intermediate. Additionally, it finds application in the formulation of coatings and adhesives, enhancing their performance and durability. In the field of nanotechnology, it is used to modify nanoparticles for improved dispersion and compatibility in different matrices. Its ability to form stable bonds with substrates makes it a versatile choice for surface functionalization in both industrial and research settings.