Concentrated foaming acidic cleaner which can be used to clean bricks, blocks, stainless steel, ceramic tiles, painted walls and fiberglass panels. Product is also suitable for wheel cleaning. Contains highly effective mixture of acids and surfactants for speedy cleaning, corrosion protection and economy. Dissolves rust, minerals and penetrates dirt deposits on surfaces. Product can be used as acidifier to maintain pH2-3 in different solutions, for example, Ultra concentrated Polishes UF300 or UF301.