This is a general purpose sealant used in automobile cooling systems while there is anti-freeze or coolant in the system. Just shake it up, pour it in the radiator and drive on. All Weather Seal is widely used and effectively takes care of many small leaks - quickly and easily.Seals Cooling Systems
Stop leaks in less than 5 MinutesSeal minor cracks and leaks in the cooling system - prevent anti-freeze leaksLubricates water sealsFast-acting, non-corrosive, non-cloggingCan be used with coolant or anti-freeze