CRC Di-Electric Grease seals, protects, lubricates, insulates and prevents water from getting into electrical connections and contacts, helping prevent corrosion, which can damage wiring and cause malfunctions. Corrosion on lamp connectors and wiring causes bulbs to burn hotter, shortening their life. Di-Electric Grease prevents bonding so that components can be easily removed. It improves electrical performance and provides critical protection for electronic components exposed to rain, fog, salt spray and temperature extremes.