Radiator sealant (fluid). Fast-acting, reliable product to eliminate leaks of any cooling systems, including aluminum ones. It perfectly seals radiators, cylinder blocks, heating systems, operating on antifreeze, gaskets of cylinder block heads. Besides, this sealant comprises efficient lubricants for water pumps and corrosion inhibitors. Application: 1. Warm up the engine before application so that the radiator is warm. 2. Stop the engine and wait for some time while the pressure in the cooling system decreases. 3. Carefully remove the radiator cap. 4. Thoroughly shake the can. 5. Pour the solution from the can into the radiator or expansion tank and close the cap. 6. Start the engine. Let it run in the idle mode until the leakage stops (about 15 - 20 minutes). Composition: magnesium aluminum silicate, bentonite clay, silica, non-dangerous ingredients. If you are not sure that the cooling system is clean, first use ABRO radiator washing fluid.