Quickly and effectively stops leaks in the cooling system. Contains additives that prevent corrosion. Perfect for impact caused by stones. to remove leaks caused by vibration or other mechanical damage. Suitable for use in all types of radiators and with all types of coolants. Safe for the heater and other elements of the cooling system. Use: 250 ml additive for up to 10 l cooling system. 400 ml for up to 15 l system.