The innovation lies in the covalent grafting of nano titanium dioxide (TiO₂) onto graphene oxide (GO) via thiol–ene click chemistry, resulting in a nanohybrid material with significantly improved performance characteristics. The modified GO-TiO₂ particles are embedded within a methyl phenyl silicone resin matrix. The result is a composite coating that exhibits improved thermal stability, corrosion protection and self-cleaning abilities—key properties for industrial applications in harsh conditions such as chemical processing or power generation. Nano-hybrid coating structure improves thermal and mechanical integrityCharacterisation by SEM, TEM, FTIR and XRD confirmed the successful grafting of TiO₂ onto GO. Even at a low filler content of just 0.2 wt%, the GO-TiO₂ additive delivered a noticeable boost in barrier properties.