Designed for the treatment of metal surfaces to remove corrosion or rust. Protects the treated surface from subsequent atmospheric and climatic impacts. Passivates the metal surface, converting corrosion products into a solid coating that can serve as a base for painting. Method of application: Shake well before use. Clean the metal surface from loose (flaking) rust. Apply the product to the surface with a brush, roller, or spray method at a temperature not lower than +10°C on a dry degreased surface in two layers with intermediate drying of about 30 minutes. The surface can be painted after complete drying (at least 30 minutes at a temperature of +20°C). Volume: 60 ml Temperature range of application: from +10 to +30°C. Composition: Deionized water ≥30%, inorganic acid 15-30%, functional additives ≤5%.