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B&Q£133.99Visit shop - Nitrox Steel Weld Seals Head Gasket Leak Radiator & Coolant Hose Repair 500Ml X4
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The Nitrox Steel Weld (NXS500) is a versatile chemical sealant designed for automotive enthusiasts and DIY mechanics looking to address persistent coolant leaks. It is ideal for permanently sealing leaks in head gaskets, radiators, cylinder heads, freeze plugs, heater cores, and engine blocks without requiring professional shop intervention. While it offers a convenient "pour-and-go" solution that works with existing anti-freeze, users should note it is not compatible with Rover 825/827 vehicle models.
| Model Part Number | NXS500 |
|---|---|
| Brand | Nitrox |
No. The formula is designed to be compatible with all types of anti-freeze, so you can add it directly to your existing system.
No. This product is specifically noted as not recommended for Rover 825 or 827 models.
A 500ml bottle provides enough sealant for two separate treatments on cooling systems up to 12 litres.
It is designed to seal leaks in head gaskets, radiators, cylinder heads, freeze plugs, heater cores, and engine blocks.
Yes, Nitrox Steel Weld is formulated to permanently repair and seal leaks, while remaining active to seal any new leaks that may develop.
Ensure the engine reached full operating temperature during circulation. If the leak is large, a second treatment using the remaining half of the bottle may be necessary.
Shake the bottle vigorously for at least one full minute to re-emulsify the active ingredients before pouring.
