SOLL STOP RUST (rust sealer) changes the moisture content in corrosive layers into carbon dioxide and therefore takes away the basis for further corrosion. The substrate is inforced and sealed. A ferrous metal showing rust should be roughly sanded. SOLL STOP RUST shows good penetration even in thick layers and stops also zinc corrosion. Even shortly after application the corrosive layers are sealed and can be over coated with 1K- or 2K-primers or polyester putties. Adhesive on iron, steel, aluminum and zinc.