A penetrating fluid, often referred to as a penetrating oil or lubricant, is a specialized fluid designed to penetrate and loosen seized or rusted metal parts. These fluids typically contain a blend of solvents, lubricants, and anti-corrosion agents, formulated to seep into tight spaces and break down the bond between metal surfaces.
Penetrating fluids play a crucial role in various industries, including automotive repair, plumbing, and manufacturing. They are particularly effective in loosening bolts, nuts, and other fasteners that have become seized due to corrosion, rust, or thread lock compounds. The lubricating properties of these fluids also reduce friction and wear during the disassembly process, minimizing the risk of further damage to the components.