ZOLLEX Radiator stop leak helps eliminate leaks quickly. Safe for use with cooling system parts, copper and aluminum radiators.
Application: Remove the radiator cap and start the engine at idle speed (for about 10 minutes). Shake well and pour the additive into the radiator while the engine is running. One bottle is enough for 20l of coolant. Fill the coolant up to max indicator. Tighten the radiator cap and keep the engine running until the leak stops.