In the textile and paper industries, PVA is widely used as a sizing and coating agent. It improves yarn strength during weaving and enhances paper quality by increasing surface smoothness and printability. In construction, PVA fibers are added to cement and concrete to improve crack resistance and durability. PVA also plays an important role in medical, pharmaceutical, and cosmetic fields. Because it is biocompatible and non-toxic, it is used in eye drops, contact lens solutions, wound dressings, and drug delivery systems.