Used as a hydrophobic surface modifier in coatings and thin films due to its long alkyl chain and reactive silyl group. The compound readily binds to inorganic surfaces such as glass or metal oxides, forming a durable, water-repellent layer. It is applied in protective coatings for optical devices, sensors, and outdoor equipment where moisture resistance is critical. Its long carbon chain enhances surface energy reduction, improving anti-wetting and anti-fouling properties. Also utilized in microfabrication processes to control surface adhesion and in the development of self-assembled monolayers for electronic and biosensing applications.