DeoxIT D-Series 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 percent cleaning action. Improves Conductivity Deoxidizes, Cleans & Preserves Reduces Intermittent Connections Reduces Arcing & RFI Reduces Wear & Abrasion Temperature Range, -34oC to 200oC DeoxIT D-Series D100L Squeeze Tube, 100 percent solution, 2 ml, (Applications = 50 +/- drops, 0.04 ml/drop)