👉 Black fluid, also known as Potting Fluid or Anti-Static Fluid, is a dark, viscous liquid typically used in automotive maintenance to prevent corrosion and ensure proper adhesion of brake pads and tires to their surfaces. It contains anti-seize agents that prevent metal-to-metal contact, especially in cold weather, and sometimes includes additives for lubrication or anti-corrosion properties. However, when this fluid is contaminated or mixed with other substances, it can turn black due to oxidation. Black Potting Fluid is a sign of degradation and should be replaced promptly to avoid potential damage to vehicle components.