No grinding. Rust fixative can keep the true color of rust, and form a dense and transparent paint film after drying, which can avoid manual polishing and thus reduce the construction cost. It can be used on some rusty handicrafts to keep the appearance of rust and prevent steel from continuing to corrode. Rust inhibitor consists of various water-soluble rust inhibitors, preservatives, corrosion inhibitors, fungicides, defoamers and other high-quality raw materials.