The Caig Laboratories DeoxIT D5 spray dissolves oxidation and corrosion on metal surfaces, fills in microscopic gaps and reseals surfaces for better contact and enhanced flow of electricity. The spray is designed to improve performance and reliability of all devices and equipment, and can be used on any metal surface that conducts electricity. DeoxIT also chemically improves metal-to-metal connections and contacts. This spray features a "Perfect-Straw" spray applicator.