Ethylmethyldichlorosilane is primarily used in the production of silicone polymers and resins. It serves as a key intermediate in the synthesis of various silicone-based materials, which are widely utilized in industries such as automotive, construction, and electronics. The compound is essential for creating water-repellent coatings, adhesives, and sealants due to its ability to form stable silicone bonds. Additionally, it is employed in the manufacture of specialty chemicals, including surfactants and lubricants, where its unique properties enhance performance and durability. Its role in modifying surface properties of materials makes it valuable in applications requiring improved hydrophobicity or chemical resistance.