Stops leaks in radiators and hoses Seals in minutes with no clogging or damaging effects Prevents future leaks Simply pour for a repair in minutes Holts Holts Radweld 250ml Seals Radweld is a radiator cooling system leak repair. There’s no need to drain or flush the cooling system. Simply pour and fix, it couldn't be easier. Radweld then works its way through the system to target radiator leaks, without damaging or clogging the system.
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