A specialized lubricant formulated to loosen rusted or corroded fasteners, it is characterized by low viscosity and high surface tension. These properties enable it to seep into tight spaces and break down rust and corrosion that bind metal parts together. An example would be its application to a seized bolt on an engine to facilitate its removal.
Its utility lies in its ability to salvage components that would otherwise be damaged or unusable. By mitigating the need for destructive removal methods, it preserves the integrity of parts and reduces repair costs. Historically, formulations have evolved from simple kerosene-based mixtures to complex blends containing solvents, detergents, and corrosion inhibitors.
