The application segment of the Waterborne Epoxy Curing Agents market is differentiated by end‑use environments that dictate performance criteria such as corrosion resistance, flexibility, and cure speed. Marine coatings dominate with roughly 30 % of market revenue, driven by stringent regulations on hull protection and the need for rapid, low‑VOC cure cycles in shipyards. Construction applications account for about 25 %, encompassing concrete repair, structural steel protection, and façade systems where durability and adhesion under variable temperature are critical. Automotive uses contribute near 20 %, primarily in under‑body and chassis treatments where lightweight, high‑strength films are required. Industrial flooring represents approximately 15 %, focusing on chemical‑resistant, wear‑tolerant surfaces in factories and warehouses. The residual 10 % falls under others—including aerospace, pipelines, and specialty equipment—reflecting niche demands for tailored cure profiles. This distribution illustrates how each application niche underpins the overall market size, with the Waterborne Epoxy Curing Agents segmentation aligning closely to sector‑specific regulatory and performance drivers.