Nitrox Steel Weld Seals Head Gasket Leak Radiator & Coolant Hose Repair - 500ml
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Product Information
Full details
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.
All features
| Model Part Number | NXS500 |
|---|---|
| Brand | Nitrox |
Extended Product Information
FAQs
Do I need to drain my coolant before adding Nitrox Steel Weld?
No. The formula is designed to be compatible with all types of anti-freeze, so you can add it directly to your existing system.
Can I use this on a Rover 825?
No. This product is specifically noted as not recommended for Rover 825 or 827 models.
How many treatments does one bottle provide?
A 500ml bottle provides enough sealant for two separate treatments on cooling systems up to 12 litres.
What components does it protect?
It is designed to seal leaks in head gaskets, radiators, cylinder heads, freeze plugs, heater cores, and engine blocks.
Is it a permanent fix?
Yes, Nitrox Steel Weld is formulated to permanently repair and seal leaks, while remaining active to seal any new leaks that may develop.
Troubleshooting
Leak persists after first treatment
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.
Product is thick or separated in the bottle
Shake the bottle vigorously for at least one full minute to re-emulsify the active ingredients before pouring.
Pros and Cons
Pros
- No system flushing required
- Compatible with all anti-freeze types
- Provides long-term, permanent sealing
- Includes anti-rust inhibitors
- Economical; one bottle covers two treatments
Cons
- Not suitable for Rover 825/827 models
- Requires engine to reach operating temperature to activate
- Container must be stored upright at all times
Setup, Compatibility & Care
- Compatibility: Nitrox Steel Weld works with all standard anti-freeze. It is safe for use on most vehicle engine blocks, but strictly prohibited for use in Rover 825/827 models.
- Storage: Always keep the container in an upright, vertical position to prevent leakage of the concentrated formula.
- Maintenance: Because this product acts as a permanent sealant, it is recommended to monitor your coolant levels after the first few drives following application to ensure the system is pressurized and sealed correctly.