DURAFILM® polymer self-lubricating coatings are sprayed onto the surface of metal components to form a dense, wear-resistant solid lubricating film. The coating's main performance features include a reduced coefficient of friction, extended component wear life, and rust and corrosion prevention, with strong adhesion and compatibility with various metal substrates. Original metal components are prone to wear, galling, and rust during frictional motion; after coating application, no additional grease is required, enabling dry-state self-lubrication. Applicable parts include metal bushings, sliding plates, lead screws, gears, solenoid valve components, hinged pins, and more—not limited to standard bearings. They are widely used in automotive components, hydraulic elements, valves, and precision tooling. Customers' existing metal components can be directly improved in friction and wear performance through coating modification without re-tooling, reducing overall equipment design modification costs.