Chemical Plant Storage Tank Corrosion Protection Solution
In less than three months, a coastal chemical plant in Shandong faced a major crisis. Due to severe tank corrosion, the facility was at risk of suffering losses amounting to one million USD. Standing before Tank No. 3, the plant’s equipment supervisor, Li Ming, was deeply concerned.
These storage tanks had only been in service for three years before weld seams developed numerous corrosion holes. The combined effects of salt spray and chemical vapors were progressively degrading the tanks. If the situation worsened, the entire plant would be forced into an unscheduled shutdown for maintenance, with potential losses estimated at one million USD.
Storage tanks are the lifeline of chemical plants, storing various raw materials and products to ensure a stable production chain. However, corrosive chemicals continuously react with the metal walls, leading to metal substrate deterioration, thinning of the tank walls, and a reduction in structural strength. Additionally, a humid environment accelerates corrosion by forming an electrolyte layer on the tank surface.
Given these critical challenges, corrosion protection was imperative to extend the lifespan of the tanks and prevent substantial financial losses. The client opted for our phenolic epoxy tank coating, which delivered exceptional results. This coating is suitable for various oil storage tanks, providing a dry film thickness of 200 - 300μm. It offers high flexibility, excellent acid and alkali resistance, non-fading properties, and strong adhesion—ensuring no peeling, cracking, or moisture-related coating issues.
Once applied, the phenolic epoxy coating created a robust barrier, preventing oxygen, moisture, and corrosive ions from contacting the metal surface. This significantly enhanced the tank’s corrosion resistance and reduced the risk of leaks. After 45 days, inspection results showed:
• Magnetic coating thickness gauge reading: "280μm"
• Thermal imaging analysis: surface temperature fluctuations reduced by 5.8°C compared to pre-treatment levels
Today, with proper corrosion protection, these tanks have been operating stably for 18 months, and the annual maintenance cost has dropped from 370,000 USD to 65,000 USD. Transitioning from reactive repairs to proactive protection, we leverage material science to safeguard asset life cycles—because this is more than just coating; it’s a critical investment decision.