Bar’s Leaks Radiator Stop Leak w/ Water Pump Lube is formulated as a complete cooling system tune up, used for both emergency stop leak and cooling system maintenance.
It works on plastic, aluminum, and metal radiators in heater cores, engine cooling jacket, gaskets (including head gaskets), water pumps, and freeze plugs. Bar's Leaks Rhizex helps reduce cavitation by breaking-up ultra-low pressure cavities and reduces the internal micro-implosions that cause damage to water pump impellers. Special Buffing agents help keep the cooling system clear and clean and the added anti-rust lubricant will help quiet noisy water pumps while protecting and increasing the life of the entire cooling system.
Keep Bar's Leaks Radiator Stop Leak in your emergency repair kit for those unexpected surprises and apply once a year to keep your cooling system working at its best.
When reaching an external leak, it travels between the holes, gaps, and cracks and collects around the outer perimeter of the leak. Then builds inward, effectively sealing the leak. When exposed to air, it expands up to 15% in size, creating a tight seal capable of holding in pressures exceeding the maximum designed for cooling systems. Resulting in a strong seal without clogging your cooling system.
Bar's Leaks Radiator Stop Leak is best installed directly into the radiator or through the upper radiator hose. If no access direct access is available, install in the coolant reservoir and allow more time for the product to circulate within the cooling system.
The cooling system must be clean and free of other types of stop leak products. If it is necessary to remove other anti-leakage substances, or if the engine is over 2 years old or has traveled over 25,000 miles,, clean the system with Bar's Flush before using Bar's Leaks Radiator Stop Leak.