👉 A covering fluid, also known as a sealant or lubricant, is a substance applied to the surface of moving parts in mechanical systems to minimize friction and wear. It forms a thin, protective layer that separates the contacting surfaces, preventing direct metal-to-metal contact and reducing heat generation. This fluid can be composed of oils, greases, or other specialized materials, and its primary functions include reducing friction, improving efficiency, extending the lifespan of components, and protecting against environmental factors like moisture and contaminants. By creating a smooth interface between moving parts, covering fluids enhance the performance and reliability of machinery in various applications, from automotive engines to industrial pumps.
