Xanthan gum is a natural polysaccharide that is produced by the fermentation of sugar by a specific bacterium. Xanthan gum improves the performance and quality of greases and lubricants by increasing their viscosity and stability under different conditions. It also helps to form a protective film on the metal surfaces of machinery and equipment, reducing friction and wear. Xanthan gum is compatible with most mineral and synthetic base oils, as well as other additives and thickeners. Xanthan gum is suitable for high-temperature applications, as it has a high thermal stability and does not degrade easily.