A crosslinking agent is a chemical compound that helps to connect polymer chains together, creating a network structure. This process enhances the properties of materials, making them stronger, more durable, and resistant to heat and chemicals. Crosslinking is commonly used in the production of plastics, rubbers, and coatings. These agents can be found in various forms, such as formaldehyde, epoxy compounds, or isocyanates. By introducing crosslinks, manufacturers can improve the performance of products like adhesives, sealants, and textiles, leading to longer-lasting and more effective materials.