New dual-layer coating achieves 99.6% iron corrosion protection

Researchers at the Hebrew University of Jerusalem have developed a new dual-layer coating that provides 99.6% protection against iron corrosion, addressing a longstanding challenge in preserving iron’s structural integrity. The innovative coating combines an ultra-thin molecular primer made of N-Heterocyclic Carbene (NHC), which chemically bonds tightly to the iron surface, with a durable polymer layer that adheres strongly to the primer. This combination forms a robust, long-lasting barrier that remains effective even under harsh conditions such as prolonged exposure to corrosive saltwater, outperforming existing protective solutions that often degrade or flake off over time. This advancement promises significant benefits for industries relying on iron-based materials, including construction, transportation, and manufacturing, by extending the lifespan of infrastructure like bridges, pipelines, and ships while reducing maintenance costs. The researchers emphasize that widespread adoption of this coating could lead to more sustainable and cost-effective use of iron, mitigating the global economic impact of corrosion, which currently costs an estimated $2.5