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B&Q£103.99Visit shop - Nitrox Steel Weld Seals Head Gasket Leak Radiator & Coolant Hose Repair 500Ml X3
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Nitrox Steel Weld (NXS500) is a heavy-duty sealant designed for DIYers and mechanics looking to permanently seal leaks in head gaskets, radiators, cylinder heads, and engine blocks. It offers the key benefit of a quick, permanent repair without requiring a time-consuming system flush, making it an excellent choice for addressing cooling system failures. However, users should note that this product is not compatible with Rover 825/827 models, and it is crucial to keep the bottle upright during storage to avoid leaks.
| Model Part Number | NXS500 |
|---|---|
| Brand | Nitrox |
No, Nitrox Steel Weld is designed to be added directly to your existing coolant mixture.
No, this product is specifically not recommended for use on Rover 825 or 827 models.
The 500ml bottle contains enough formula for two treatments for cooling systems up to 12 litres.
You can add it while the system is hot or cold, provided it is safe to open the radiator cap.
When used according to the instructions, the formula is designed to seal leaks without clogging the fine passages of a heater core or radiator.
The sealant begins to work as soon as the engine reaches operating temperature and the solution is fully circulated.
Ensure the engine ran long enough for the sealant to circulate fully. If the leak is too large, the product may require a second treatment.
This is normal after adding Nitrox Steel Weld; it does not impact the cooling efficiency of the vehicle.
This product is highly versatile and compatible with all standard antifreeze mixtures. There is no specific equipment needed for application—simply pour the contents into the cooling system.
