Liquid chemical activator for the controlled formation of oxidation on ferrous metals and Corten steel, ideal for quickly achieving a uniform, natural rust effect. Used in industrial decoration and artistic crafts to create an antique finish on ironwork. Apply undiluted to rough, clean, dry and degreased surfaces, sanding the surface lightly if necessary. Apply by spraying, brushing or sponging, depending on the desired effect. If necessary, apply a second coat or spray with salt water to intensify the oxidation; leave to react for approximately 24 hours, then rinse with water and clean the tools. Coverage: 10–15 m²/L.