Nitrox Steel Weld Seals Head Gasket Leak Radiator & Coolant Hose Repair - 500ml - NXS500
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Product Information
Full details
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.
All features
| Model Part Number | NXS500 |
|---|---|
| Brand | Nitrox |
Extended Product Information
FAQs
Do I need to flush my radiator before using this?
No, Nitrox Steel Weld is designed to be added directly to your existing coolant mixture.
Can I use this on a Rover 825?
No, this product is specifically not recommended for use on Rover 825 or 827 models.
How many treatments are in one bottle?
The 500ml bottle contains enough formula for two treatments for cooling systems up to 12 litres.
Should the engine be hot or cold when adding the liquid?
You can add it while the system is hot or cold, provided it is safe to open the radiator cap.
Will this clog my heater core?
When used according to the instructions, the formula is designed to seal leaks without clogging the fine passages of a heater core or radiator.
How long does it take to seal?
The sealant begins to work as soon as the engine reaches operating temperature and the solution is fully circulated.
Troubleshooting
Leak persists after application
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.
Coolant looks cloudy
This is normal after adding Nitrox Steel Weld; it does not impact the cooling efficiency of the vehicle.
Pros and Cons
Pros
- No system flushing required
- Works on both hot and cold engines
- Provides long-term rust protection
- Compatible with all standard antifreeze types
- Economical dual-treatment bottle
Cons
- Not suitable for Rover 825/827 engines
- Requires engine to be running for circulation
- Must be stored in a strictly upright position
Setup, Compatibility & Care
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.
Care Instructions:
- Storage: Always store the container in an upright position to prevent accidental leakage or solidification of the formula in the bottle threads.
- Dosage: For a standard 12-litre cooling system, use half the bottle per treatment. If your system is smaller, scale the dosage accordingly.
- Disposal: Follow local regulations for disposing of chemical automotive fluids.