The iron, such as steel and cast iron, is a material that undergoes to oxidation process, especially if exposed to water or oxygen. The result of this corrosion process is the formation of tan unpleasant-looking that we commonly call rust.
Rust will not only affect the shine of metal, but it corrodes deep, putting at risk the stability and solidity. It is therefore very important to act quickly with proper maintenance to stop this process, before it causes major and irreversible damage to our metal objects.
The metal surface that have to receive the protective paint film must provide the maximum opportunity to anchor. It is necessary to clean it from all that is alien to its metallic nature. The rust must be removed completely, otherwise it will adversely affect every painting cycle.
To obtain a good protection of the iron is required the application of a primer containing a high percentage of pigment passivating so to lock any electrolytic activity.
Apply antirust product and then the finishing product.