Contact spray SC1990 is a cleaning and maintenance spray for cleaning and maintaining electrical contacts. Properties: * Dirt and oxide dissolving * Improves conduction * Prevents voltage loss * Moisturizing * Not corrosive * Does not attack metal and synthetic materials * With extra precision spray hose * Can be used in all positions. Application: For cleaning and maintaining electrical contacts such as potentiometers, sliding and sliding contacts and regulators. For use: Turn off electrical and electronic devices for treatment. Shake well before use. When using: Spray the surface (s) evenly. Devices can be put back into operation after about half an hour. After use: Store the packaging tightly closed in a dry, cool and frost-free place.