AC, Car Battery and More - Seal a leaky radiator

Save the high expense of a new radiator by trying to seal a leak with a radiator sealer, such as Alumaseal from Gold Eagle Co. Available in powder or liquid form, the product circulates in the radiator until it gets to the hole, where it sets up and fills the hole upon contact with the air. Alumaseal may be used to stop heater core leaks as well.