DeoxIT Gold (formerly ProGold), is a unique conditioning solution that improves conductivity and provides long-lasting protection on gold, base metals, and other precious metal contacts and connections (gold, silver, rhodium, copper, bronze, nickel, etc.). Recommended for critical applications where only slight cleaning action is necessary. If the surface looks clean, applying DeoxIT D-Series contact cleaner first is usually not necessary. DeoxIT Gold is designed to dissolve small amounts of oxidation. Apply DeoxIT Gold after DeoxIT D-Series contact cleaner on plated metal surfaces, except where noted with DeoxIT Shield S-Series below. The more critical the connection or part, especially low current applications, DeoxI Gold should be the final step.