Before revision: Contact cleaner , also known as switch cleaner , is a term for a chemical, or a mixture of chemicals, intended to remove or prevent the build-up of oxides or other unwanted substances on the conductive surfaces of connectors, switches and other electronic components with moving surface contacts , and thus reduce the contact resistance encountered.
After revision: Contact-cleaner , also known as switch-cleaner , is a term for a chemical, or a mixture of chemicals, intended to remove or prevent the build-up of oxides or other unwanted substances on the conductive surfaces of connectors, switches and other electronic components with moving surface-contacts, , and thus reduce the contact resistance encountered.