Chloromethyl trichlorosilane is widely used in the production of silicone polymers and resins. It serves as a key intermediate in the synthesis of organosilicon compounds, which are essential in creating water repellents, adhesives, and sealants. The chemical is also employed in the modification of surfaces to enhance their resistance to moisture and chemicals. In the electronics industry, it is utilized for coating components to improve durability and performance. Additionally, it plays a role in the preparation of specialty chemicals for industrial and research applications.