Würth Radiator Sealant HP
Würth Radiator Sealant HP
SKU:
24 in stock
Key Features
- High-performance cooling system protection for all modern vehicles with crossflow cooling systems.
- Seals micro-leaks up to 0.1mm in cylinder head gaskets, hose connections, and cooling system units.
- Safe for the system - does not impair dirt strainers or restrict coolant flow.
- Microfine synthetic sealing particles ensure precise and lasting sealing without clogging.
- Suitable for preventative use whenever antifreeze is changed.
- One 150ml can treats up to 10 litres of coolant.
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Description
Effective Leak Protection for Cooling Systems
Würth Radiator Sealant HP is a water-based cooling system additive formulated with microfine synthetic sealing particles that circulate with the coolant and lodge precisely at leakage points. It provides a reliable seal for hairline cracks, evaporation losses, and minor leaks in cylinder head gaskets, hoses, and other cooling system components.
Safe and Compatible
Unlike traditional sealants, the advanced formula does not impair dirt strainers, thermostats, or radiator channels, ensuring the cooling system continues to operate efficiently. It is compatible with all modern coolants and antifreeze formulations used in crossflow cooling systems.
Preventative and Corrective Use
The sealant can be added preventively during coolant replacement to safeguard against future leaks, or curatively to stop existing micro-leaks. This helps avoid overheating, coolant loss, and potential engine damage while extending the service life of the cooling system.
More Information
Application Instructions
- Ensure the engine is warm before application.
- Shake the can well and add the entire contents (150ml) directly to the cooling circuit. Only add to the expansion tank if coolant flows through it.
- Run the engine for at least 10 minutes, allowing the thermostat to open and heat to circulate through the system.
- Switch off the engine, check the coolant level, and top up if necessary.
Usage Notes
- One can treats up to 10 litres of coolant.
- Use preventively whenever antifreeze is changed.
- Designed for sealing micro-leaks up to 0.1mm - not suitable for large cracks or severe system damage.
Specifications
Chemical Basis: Water with synthetic sealing particles
Colour: Blue
Fragrance: Characteristic
Contents: 150 ml
Density: 1.01 g/cm³ (at 20 °C)
pH Value: 9
Shelf Life: 12 months from production (store sealed, cool, and dry)