Description:
Liqui Moly Radiator Stop Leak
This Liqui Moly Radiator Stop Leak is formulated for sealing leaks in the cooling water circuits of water-cooled engines. It effectively seals hairline cracks and smaller leaks and can also be used preventively after a cooling system repair. The solids dispersion is stabilised in a carrier fluid – shake well before use. Add the contents to the cold cooling system, start the heater, and drive the vehicle for at least 10 minutes.
A 150 ml bottle treats up to 10 litres of coolant, ensuring a reliable seal and preventing further leaks.
Benefits:
- Permanently and reliably seals hairline cracks and small leaks
- Suitable for aluminum radiators
- For preventive use
- No negative side effects on the water pump or heating circuit
- Compatible with conventional coolants and antifreezes
Technical Information:
| Property | Specification |
|---|---|
| Form | Liquid |
| colour / Appearance | White, Cloudy |
| Density at 20 °C | 1.05 g/cm³ |
| Solubility in Water | Mixable |
| Odor | Weak |
| Flash Point | > 100 °C |








