A leading domestic paint and resin manufacturer, whose products cover industrial paints and environmentally friendly resins, placed particular emphasis on the performance requirements of its chemical storage tanks. Considering their production environment and material characteristics, their core needs focused on corrosion resistance and rust prevention, ensuring that the tanks would not suffer chemical damage during prolonged contact with paints, resins, and solvents. We optimized the inner coating for different contents, significantly improving corrosion and rust resistance, effectively isolating materials from the tank substrate, reducing material residue, and facilitating cleaning. After these customized chemical tanks were put into use, they quickly resolved the client’s core pain points, leading to a long-term cooperative relationship.