Holts Radweld 250ml

Radweld is proven to seal small holes, cracks and fissures from within the cooling 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

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.

How to Use:

Ensure that the vehicle’s engine is cool before starting the repair process. Park the vehicle in a safe and well-ventilated area.

Before using Holts Radweld, shake the bottle thoroughly to ensure that the contents are well-mixed.

With the engine turned off, pour the appropriate amount of Radweld directly into the radiator or coolant reservoir. Refer to the product label for the recommended dosage based on the system’s capacity.

After adding Radweld, top up the cooling system with the appropriate type of coolant to the recommended level. Ensure that the radiator or coolant reservoir is filled to the specified capacity.

Start the engine and let it run for approximately 10-15 minutes to allow the Radweld to circulate through the cooling system and reach the leak.

After running the engine, monitor the cooling system for any signs of leaks. Keep an eye on the previously identified leak site to see if the Radweld has effectively sealed the leak. It may take some time for the sealant to fully take effect.