Ardrox 1218 is a powerful solution of phosphoric acid and inhibitors designed to remove rust, heat treatment scale, and welding scale from ferrous metals. It also effectively targets corrosion on aluminum, copper, and zinc alloys. Ideal for chromium-plated ferrous materials and surfaces with strict tolerances, Ardrox 1218 delivers excellent performance. It is typically diluted with water, with concentrations ranging from 10% to 50% (v/v), depending on corrosion severity. The optimal concentration varies based on the rust or scale level. Ardrox 1218 can be used at temperatures from ambient to 60°C, with higher temperatures speeding up the removal process.