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.
How to use Radweld:
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.