A combined composition based on metallized polymers and binding fibers for quick restoration of the cooling system's tightness. Suitable for all types of engines. • Eliminates leaks up to 2 mm in diameter in 10 minutes • Does not clog radiators and hoses • Fully removed during antifreeze replacement • Hardens only at the site of the leak • Compatible with all types of coolant • Safe for aluminum, cast iron, plastic, and rubber • No need to remove the radiator or other components of the system