Common knowledge on anti-corrosion for the outer wall of oil tanks

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The environment surrounding the outer wall of the oil tank is a chemical industrial atmosphere, which results in less corrosion compared to inside the tank; however, excellent weather resistance is required. Furthermore, the ambient temperature in which the oil tanks are located can have an adverse effect on the products; for example, high temperatures in summer are not conducive to the storage of oils with low boiling points, so insulation and cooling measures must be taken to reduce oil losses and ensure production safety. The recommended anti-corrosion coating scheme for the outer wall of oil tanks is: epoxy iron oxide rust-inhibiting primer (applied by brushing or spraying 2–3 coats, with a thickness of 80–100 μm) + epoxy ferrochrome intermediate coat (applied by brushing or spraying 2–3 coats, with a thickness of 100–120 μm) + thermal-insulating and anti-corrosion topcoat for the tank (applied by brushing or spraying 2–3 coats, with a thickness of 80–100 μm). For sandblasted surfaces, an epoxy zinc-rich primer can be used (applied in 2–3 coats by brushing or spraying, with a thickness of 80–100 μm) to enhance corrosion resistance. The insulation coating for storage tanks can reduce the temperature of oil products by 7–10°C during the hot summer months (compared to when no such coating is used), and it boasts excellent weather resistance, corrosion protection, and decorative properties; the paint film is resistant to being washed away by spray water.