Rust is a chemical compound of a reddish-brown color that is formed spontaneously on iron surfaces due to contact between them and the oxygen in the air or water. The chemical reaction that has been initialized causes the gradual deterioration of the iron surface, up to its complete disintegration.

The rust, without considering the aesthetic impact, also generates direct costs for the maintenance of iron surfaces, and indirect costs due to the inoperability of the areas concerned.

To remove and prevent the formation of rust, it is possible to proceed with its removal using a special rust converter and then to the encapsulation of the surface through a suitable encapsulating paint.