Concentrated liquid surfactant package for the soak cleaning of steel, stainless steel and leaded steel. This is a high alkalinity, non-chelated, heavy-duty soak cleaner formulated to be effective in hard water areas. Can be emulsifying or oil splitting depending on caustic level, customer adds own caustic for best economy. Dynaprep S100 is Nonyl Phenol (NP) and Nonyl Phenol Ethoxylate (NPE) free.