White Lithium Grease
Most lubricating greases are mixtures of an oil and a soap. The soap is dispersed into the oil to form a stable, viscous gel that is called a grease. Grease made with lithium soap ("lithium grease") adheres particularly well to metal, is non-corrosive, may be used under heavy loads, and exhibits good temperature tolerance. It has a drip temperature of 190 to 220 °C (370 to 430 °F) and resists moisture, so it is commonly used as lubricant in household products, such as electric garage doors, as well as in automotive applications, such as CV joints. Lithium-containing greases first appeared during World War II and were perhaps the first large-scale commercial application of lithium compounds.