Visbella Radiator Stop Leak Powder

Seal leaks safely, quickly and easily. Add into the radiator or heater core coolant \n \nLubricants water pumps seal and inhibits rust as well as corrosion. Compatible with all types of antifreeze. \n \nHarmless to all plastic, metals, aluminium, hoses and connections. Will not clog, obstruct or harm the cooling system. \n \nCooling systems that are dirty or partially clogged should be flushed before usage.