This product is a gentle non-toxic formula that is super tough when it comes to sealing leaks and preventing rust from forming. Not only this but the J-B Weld Perm-O-Seal Radiator Stop Leak solution also acts as a lubricant to the internal cooling system components. This product offers a permanent solution for your car, van, truck, bus or tractor radiator. It’s super easy to use too as you just need to pour the contents into your radiator slowly while the engine is running so the contents have space to properly circulate. This will not clog or harm your cooling system in any way – it’s a good, safe option for those looking for a cheaper option than paying for a mechanic.
With larger leaks, you can catch the fluid and keep running it through until the leak is sealed. This stuff really is the business. This is a versatile product too. The J-B Weld Perm-O-Seal Radiator Stop Leak solution can be used on a variety of different products too, not just automotive. Please check the packaging before buying to see if it is compatible with your vehicle.