👉 Plain fluid, also known as colloid-free fluid or simple colloid-free fluid, is a type of lubricant that consists of a base fluid (often mineral oil or silicone oil) with no added additives such as detergents, friction modifiers, or viscosity enhancers. This means it lacks the complex mixture of additives typically found in conventional lubricants, resulting in a simpler formulation that primarily relies on the base fluid's properties to provide lubrication and reduce friction. Plain fluid is often used in applications where high-performance additives are not necessary, such as in certain industrial machinery, automotive components, and specialized machinery where cleanliness and minimal contamination are crucial. Its effectiveness depends on the base fluid's ability to form a protective film between moving parts, reducing wear and friction.
