Triethylsilanol is widely used as a surface modifier in the production of silica-based materials. It enhances the hydrophobicity of surfaces, making it valuable in coatings and sealants for construction materials. In the electronics industry, it serves as a key component in the fabrication of semiconductors, where it aids in improving the adhesion and stability of thin films. Additionally, it is employed in the synthesis of organosilicon compounds, which are essential in creating silicone polymers and resins. Its ability to act as a coupling agent also makes it useful in reinforcing composites, particularly in the automotive and aerospace sectors.