Intumescent Paint For Steel segmentation by application reveals four dominant end‑use groups. Construction accounts for roughly 45 % of total demand, driven by fire‑rating requirements in high‑rise buildings, bridges, and structural steel components. The Marine sector contributes about 20 %, where corrosion‑resistant fire protection is mandated for ship hulls and offshore platforms. Oil & Gas installations represent ~25 % of the market, reflecting strict safety codes for pipelines, refineries, and processing equipment exposed to high temperatures. Finally, Infrastructure—including tunnels, airports, and railways—makes up the remaining 10 %, where fire‑safety standards are increasingly enforced. Collectively, these application segments define the overall market size, with construction providing the largest revenue base while the other three sectors supply steady, niche growth. The distribution underscores the importance of regulatory frameworks and project‑specific fire‑protection specifications in shaping market dynamics.