Widely used in water treatment processes, this chemical acts as a cationic flocculant to remove suspended solids, organic matter, and negatively charged particles from wastewater. It is effective in clarifying water in municipal and industrial treatment plants by promoting aggregation of fine particles, which enhances sedimentation and filtration efficiency. Commonly applied in paper manufacturing, it improves dry strength and retention of fillers and fibers during paper formation. Its positive charge helps bind cellulose fibers, increasing paper strength and reducing raw material loss. In cosmetics and personal care products, it serves as a conditioning agent in shampoos and hair treatments. It adheres to hair surfaces, providing softness, reducing static, and improving manageability due to its film-forming and antistatic properties. Also utilized in the production of functional polymers and coatings, especially where antimicrobial surfaces are needed. When polymerized, it forms polyelectrolyte layers that can disrupt microbial cell membranes, offering biocidal activity in medical devices, textiles, and surface coatings. Its reactive methacrylate group allows for copolymerization with other monomers, making it valuable in developing specialty polymers for adhesives, hydrogels, and ion-exchange resins.