Holts Radweld is a DIY repair product that is designed to seal small leaks in the cooling system. Tested in our state of the art lab and in real-world conditions, Radweld is proven to seal small holes, cracks and fissures from within the system, providing a permanent repair for a fraction of the price of replacement parts.
Steam from your radiator and an overheating engine doesn’t have to ruin your day or cost a fortune to repair. With its advanced formula, Holts Radweld will target leaks in your car’s cooling system, safely sealing gaps and holes without causing any damage or clogging within the engine.
- 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
Features and Benefits
Radweld is suitable for all cars and mixes with all types of coolant/antifreeze already in the cooling system. You don’t need any special preparation to use Radweld and there’s no need to drain or flush the cooling system.
Radweld also prevents future leaks to help keep your car on the road for longer. By treating areas of corrosion and pitting at the source, the product effectively extends the life of your coolant/antifreeze and individual components within the cooling system, which helps to prevent future leaks while maintaining the efficacy of engine cooling for longer.
Holts develop products for you right here in the UK, based on the ever-changing needs of the car market, so they’re easy to use.
How it Works
Quick and easy to use, Radweld gets to work instantly, circulating through the cooling system to form a permanent and long-lasting repair. Never has it been easier or more convenient to treat and fix problems in your car’s 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.
No matter where the leak or problem area is within your car’s cooling system, Radweld’s specialist formula will seek out holes, cracks and areas of abrasion, bonding to the material to form a permanent repair. The product is applied directly to the coolant/antifreeze reservoir without the need to flush the system, for complete convenience.
Take a look at our instructional video below to see Holts Radweld in action
What the experts say…
“A car arrived in the workshop on a Saturday morning with a leaking radiator. After the engine had cooled down I introduced Radweld into the cooling system and ran the engine for half an hour during which time the leak stopped. The customer reported back the following week to say it had remained leak free. Happy customer!”
Jonathan Fry, Owner of Jonathan Fry Automotive
Where to Buy
If you suspect that your cooling system is leaking, don’t delay: applying Holts Radweld now could save you the hassle of overheating and breakdowns at the roadside. The product is available to buy at motoring stores, select retailers or online.