Liquid Aluminum Radiator & Heater Core Stop Leak

The two key ingredients in this product are Liquid Aluminum™ and Xtreme Cool™. Liquid Aluminum™ is part of our next-generation stop leak line which not only seals leaks, but also conditions the system. It also contains Xtreme Cool™ which stops overheating and reduces water temperature. The mixture of these two formulas is guaranteed to safely and easily seal leaks in plastic, aluminum and metal radiators, heater cores, gaskets and freeze plugs.