K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair
This stop leak from K-Seal offers a simple and effective temporary solution to a radiator leak. Although the product makes claims of permanent repair, no stop leak product is really ideal as a long-term solution. K-Seal is easy to use as you simple shake the bottle, pour it in, and then you're good to go. Effective for leaks in the radiator, head gasket, heater core, and more, this multi-purpose product is convenient to have around as a band aid-style fix. K-Seal mixes with all types of antifreeze.