Solid film lubricant

Solid film lubricants are materials applied as a thin layer to reduce friction between surfaces in relative motion while providing a barrier to wear and corrosion. Unlike traditional lubricants, such as oils or greases, solid film lubricants remain effective under a wide range of temperatures and pressures and do not require reapplication during service. They are especially useful in extreme environments, such as high temperatures, vacuum conditions, or where liquid lubricants would be ineffective.