Steam Boiler Cleaner - Steam Boiler Cleaner/Inhibitor 5Oz. - SK7 Absorbs grease oil, rust, dissolved and suspended solids Prevents formation of insulating scale and crystallizing solids Prevents corrosion - protects metal surfaces Neutralizes free oxygen, Prevents foaming, surging or priming, Maximizes heat transfer Safe to use in all boilers contains no petroleum or hazardous components, No draining, no blow down required (precipitated sludge may be drawn off)