There are two basic methods of rust removal - mechanical and chemical.
The method used depends upon the type of structure, its location, the kind and severity of corrosion. Mechanical methods of corrosion removal are more common, including abrasive mat, abrasive paper, powered mechanical sanding, buffing, grinding, shot blasting, etc. Chemical methods of rust removal are only applicable on light corrosion and used where the chemicals cannot migrate to other areas.
Removing surface rust from surfaces improves the appearance, but its importance goes well beyond the aesthetics. Rust, left unchecked, can lead to pitting and structural damage to products and components. Rust Corrosion protection can impact the performance of the equipment, contaminate flow paths which in turn obstruct the flow of liquid or gas in the pipes, thus reducing the overall efficiency and impact reliability.