Liquid Aluminum Stop Leak

Liquid Aluminum Cooling System/Radiator Stop Leak is  formulated to permanently seal coolant leaks.

• Xtreme Cool wetting agent reduces coolant surface tension, improves heat transfer and reduces coolant temperature
• Safely and easily seals leaks in plastic, aluminum and copper/steel radiators, heater cores, gaskets and freeze plugs
• Compatible with all types of antifreeze
• Can be added directly to vehicle's cooling system with no flushing required
• Meets ASTM D6107 specifications