Room Temperature Vulcanized (RTV) silicone rubber coating can prevent pollution flashover accident from happening, and it has been widely used in China.

The room temperature vulcanized (RTV) silicone rubber coating on the surface of insulator can incrcase the flashover voltage of insulators due to the migration of hydrophobicity of RTV coating.

The molds, or skins, are made by coating a rock with silicone or rubber, which is peeled away after it dries.