What is Radweld Plus?


Radweld Plus is an easy to use, total cooling system leak repair. It works through your system to quickly seal leaks in:

  • Radiators
  • Engine blocks
  • Cylinder heads
  • Hoses
  • Heater core
  • Water pump gaskets

Radweld Plus can be used at home and is simple to use; there’s no need to flush or drain the system. Simply pour in and let Radweld Plus locate and seal the leaks.

  • Total cooling system leak repair
  • Easy to use, pour and go formula
  • Seals in minutes
  • No clogging or damaging effects
  • Treats up to 21 litres

Solve your radiator and cooling system leaks with Radweld Plus.

Holts have been developing automotive repair products to keep you driving since 1919. Our products are developed in our UK laboratories and tested on the road.

Radweld Plus is part of our trusted Radweld range which is guaranteed to work in all vehicles without causing damage.

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