Designed for the treatment of metal surfaces to remove, convert corrosion or rust. Converts corrosion products and inhibits the corrosion process on various surfaces and products made of steel and cast iron with a rust layer thickness of up to 80 µm. Reacts with rust products, modifies them, and transforms them into a base layer for painting. Thanks to the presence of active zinc ions in the composition, it provides additional surface protection and extends the service life of steel products. Application method: shake well before use. Clean the metal surface from loose (peeling) rust. Apply the product to the surface with a brush, roller, or spray method at an ambient temperature not lower than +10°C on a dry degreased surface in two layers with intermediate drying time of about 30 minutes. The surface can be painted after the complete drying of the surface (no less than 30 minutes at a temperature of +20°C). Application temperature range: from +10°C to +30°C. Volume: 500 ml Composition: Deionized water ≥30%, inorganic acid 15-30%, zinc salts ≤5%, functional additives ≤5%.