This product is a special product specially developed by our company to treat rust, it is a highly permeable, water-soluble liquid. It is specially developed for common problems such as rust and rust removal of steel structures and metal roofs. Metal roofing will inevitably face the process of oxidation, aging, rust to perforation and leakage, when the surface is difficult to treat during maintenance and repair, improper treatment will lead to the surface of the paint coating falling off and cracking, and the base metal will continue to rust; After using this product, the rusted base surface does not need to be specially cleaned, and the rust of the original base surface can be firmly bonded together by painting or brushing, and the metal surface can also be avoided from continuing to rust, so as to ensure that the subsequent coating is more reliable and effective.