We used F-3333 rust converter to create a barrier and stop the corrosion from progressing. This barrier can be used on its own or painted on. It is easy and fast to touch up if required. This application requires no or little surface preparation, should thick scale or flakes with corrosion be present simply remove these by hammer or scraper, sweep away debris and paint straight on-top of rust. The rust will be incorporated in the polymer rust converter and create a barrier. This product is highly reccomended in situations where blasting and painting is not feasible, it is simple and fast to use for unskilled personnel.