Decyltrimethoxysilane is widely used as a surface modifier in various industries. It is applied to enhance the water repellency and adhesion properties of materials, particularly in coatings and sealants. In construction, it is utilized to treat concrete and masonry surfaces, providing protection against moisture and improving durability.

In the automotive sector, it is incorporated into paints and coatings to improve resistance to environmental factors like UV radiation and weathering. Additionally, it is used in the production of hydrophobic coatings for glass, ceramics, and metals, ensuring surfaces remain clean and free from water spots.

In the textile industry, it is employed to create water-repellent fabrics, making them suitable for outdoor and protective clothing. It also finds application in the manufacturing of adhesives and sealants, where it enhances bonding strength and longevity.

Overall, its versatility in improving material performance makes it a valuable component in various industrial applications.