Dodecyltriethoxysilane is widely used as a surface modifier in various industries. It is applied to enhance the hydrophobicity of materials, making them water-repellent. This property is particularly useful in coatings for construction materials, such as concrete and stone, to protect them from moisture and weathering. In the textile industry, it is used to treat fabrics, providing stain resistance and durability. Additionally, it serves as a coupling agent in composites, improving the adhesion between organic polymers and inorganic fillers. Its application in nanomaterials also aids in the dispersion of nanoparticles, ensuring uniform distribution in different matrices.