The Deoxit D100L is a contact cleaner for connectors to improve their conductivity. It removes oxidation and corrosion from metal surfaces and fills microscopic gaps on the surface of connectors for better contact to improve electrical conductivity. It chemically improves metal-to-metal connections and contacts as well as connector performance and reliability. In addition, it reduces arcing, RFI, wear and abrasion for reliable signal transmission and cleaner sound.