If you’re looking for a quick, easy, and cost-effective solution to a leaky radiator, look no further than Radweld. It’s one of our most popular products, and drivers have been using it for decades to repair leaks in radiators.

Radweld works its way through the system, seeking out leaks and forming permanent repairs in minutes. Radweld has been carefully formulated to mix with all engine coolant and antifreeze types, and works quickly to fill small holes and gaps, resealing the system to permanently repair leaks.

Radweld can be poured directly into the cooling system, with no need to drain or flush the system first. The product also provides anti-corrosion protection and prevents future leaks; it will last the lifetime of the coolant in the system.