DeoxIT is a fast-acting deoxidizing solution that cleans, preserves, lubricates and improves conductivity on metal connectors and contacts. Use as a general treatment for connectors, contacts and other metal surfaces. Use on non-critical metal surfaces with severe oxidation and corrosion on the metal surface. If there is a discoloration of the metal - it is severe. Use DeoxIT to dissolve the contamination. DeoxIT will also lubricate and protect the surface. For reference, DeoxIT has approximately 20% cleaning action.