3-Chlorostyrene is primarily used in the production of specialty polymers and resins. It serves as a key monomer in the synthesis of copolymers, which are often utilized in the manufacturing of high-performance plastics. These plastics exhibit enhanced chemical resistance and thermal stability, making them suitable for use in demanding industrial applications such as coatings, adhesives, and electronic components. Additionally, 3-Chlorostyrene is employed in research and development for creating novel materials with tailored properties, particularly in the field of advanced composites and functional polymers. Its unique chemical structure allows for modifications that can improve the mechanical and chemical characteristics of the final products.