Thread Content
Given the highly corrosive conditions in the acidic water tanks of oil refining plants, and taking into account factors such as overall procurement cost, construction complexity, and service life, titanium nanopolymer anti-corrosion coatings represent the most cost-effective option. Purchase cost: The unit price of the titanium nanopolymer heavy-duty anti-corrosion primer is approximately 33–39.87 yuan per kilogram, while the price of the topcoat is around 56 yuan per kilogram; these prices are much lower than those of high-end imported heavy-duty anti-corrosion coatings with similar performance. Construction cost: The coating can be applied directly to the rust-removed metal surface, without the need for complex special pre-treatment procedures; thus, the application process is simple and fast, resulting in lower labor costs. Service life: It can operate stably in the highly corrosive environment of acid water tanks for over 5 years, which is far longer than the 1–2 year service life of ordinary epoxy coatings; this significantly reduces the frequency and costs of subsequent maintenance and renovation. Adaptability: It can effectively resist the erosion caused by H₂S, Cl⁻, and acidic media in acidic water tanks; it boasts excellent impermeability and resistance to hydrogen blistering, fully meeting the anti-corrosion requirements of oil refining plants. Among other alternative coatings, the ZS-711 inorganic anti-corrosion coating costs around 70–80 yuan per kilogram. Although its anti-corrosion lifespan can exceed 10 years, the material procurement cost is higher; it is therefore more suitable for projects with sufficient budgets that seek an extremely long service life ； RLHY-9035 high-temperature acid and alkali resistant coating is more suitable for high-temperature operating conditions; it offers no additional performance advantages in conventional acidic water tank applications, and its overall cost-performance ratio is inferior to that of titanium nanopolymer coatings.