BONDERITE C-MC 181 is a heavy-duty descaling agent based on mineral acids and corrosion inhibitors. It is chemically engineered to solubilize insoluble salts, primarily zinc phosphate sludge and calcium carbonates, which foul heat exchangers. The formulation includes specific passivating agents that protect the base metal of the equipment (typically Stainless Steel 304/316) from acid attack during the cleaning cycle, allowing for aggressive cleaning with minimized corrosion risk.