Description
Antiwear additives, also known as antiwear additives or AW additives, are lubricant additives used to reduce wear between friction surfaces. These additives form a protective film on metal surfaces, helping to prevent direct contact and reduce friction and wear.
Antiwear additives often contain compounds such as zinc dialkyldithiophosphate (ZDDP) or other phosphorus-containing compounds. These compounds react with the metal surface to form a protective layer of phosphates and sulfides that act as a barrier between the surfaces.
When two metal surfaces come into contact, anti-wear additives create a sacrificial layer that is softer and more susceptible to damage than the actual metal surface. This sacrificial layer absorbs sliding friction and protects the metal surface from wear and damage.
In addition to reducing wear, anti-wear additives can provide other benefits such as reduced friction, reduced heat generation, increased load-carrying capacity and extended lubricant life.
Anti-wear additives are commonly used in automotive engine oils, gear oils, hydraulic oils and industrial lubricants. They help protect critical engine and mechanical components such as piston rings, bearings and gears from wear and extend their service life.
However, it is worth noting that the use of anti-wear additives, especially ZDDP, has been declining in recent years due to environmental concerns and their potential to damage catalytic converters in modern vehicles. Therefore, alternative additives and formulations are being developed to meet changing requirements and regulations.








Pann Eve Moore –
I have been using this lube additive for over 15 years
Benjamin Reed –
The performance of the anti wear additives friction modifier znddp additive product is much better than I imagined, which surprised me.