1. Inner Layer: Special Coatings & Anti‑Static Treatment
- Oil‑resistant, anti‑static epoxy coatings – applied as primer and topcoat to inner wall.
- Resists permeation and abrasion; effectively dissipates static electricity to prevent sparking.
- For aviation kerosene, non‑carbon‑based anti‑static coatings avoid fuel contamination.
- Ensures safe and durable contact with fuel.
2. Outer Layer: FRP & Anti‑Aging Protection
- Fiberglass‑reinforced plastic (FRP) – offers excellent resistance to chemical and electrolytic corrosion.
- Withstands external soil and groundwater attack.
- Steel outer tanks may receive modified polyolefin or anti‑aging white oil layer.
- Enhances UV resistance and weathering performance.
3. Interstitial Space & Cathodic Protection
- Interstitial space – filled with monitoring fluid or antifreeze containing corrosion inhibitors.
- Prevents electrolytic corrosion within the space.
- Cathodic protection systems – used for buried steel tanks to inhibit metal corrosion via electrochemical principles.
- Significantly extends tank service life.
4. Graphene Composite Coatings & New Materials
- Graphene‑epoxy anti‑corrosion coating – applied to outer tank exterior.
- Leverages graphene's superior barrier properties to greatly enhance corrosion and permeation resistance.
- Innovative process improves overall tank safety.
- Reduces long‑term maintenance costs.