Tetrapropyl orthosilicate is widely used in the production of silica-based materials, particularly in the synthesis of zeolites and other porous structures. It serves as a precursor in sol-gel processes, where it helps create thin films, coatings, and nanoparticles with controlled porosity and surface properties. In the field of catalysis, it is employed to prepare catalysts and supports with high thermal stability and surface area, enhancing reaction efficiency. Additionally, it finds applications in the development of optical and electronic materials, where its ability to form uniform silica layers is crucial for device performance. It is also utilized in the fabrication of protective coatings for metals and ceramics, offering resistance to corrosion and wear.