Holts Radweld Plus

Holts Radweld Plus is the gold standard in total coolant leak repair. It seals coolant to air leaks in the engine block, cylinder head, radiator and hoses, and eliminates the need to drain the system. Its anti-corrosion formula protects and maintains a healthy coolant system. It is suitable for sealing the largest leaks in all cars, and for use with all anti-freeze.