LIQUI MOLY Radiator Stop Leak

Designed to seal minor coolant leaks in water-cooled engine systems—including micro-cracks, weak solder joints, and stone-chip damage. Requires no disassembly or complex service. Works rapidly using a penetrating sealing agent that permanently seals leaks without clogging the water pump or radiator. Protects against corrosion and enhances coolant stability. Safe for all metals, plastics, and elastomers used in modern cooling systems. Maintains optimal cooling efficiency and prevents dangerous engine overheating.