Car Care


RAVENOL Professional Radiator Stop Leak
MYR 0.00      
Availability:In stock

 Sealant for the cooling system.

RAVENOL Professional Radiator Stop Leak is a dispersion for protecting the cooling system and the combustion chamber against leaks and increasing operational safety.

RAVENOL Professional Radiator Stop Leak permanently seals hairline cracks and leaks.

RAVENOL Professional Radiator Stop Leak prevents seals from sweating and the loss of coolant.

RAVENOL Professional Radiator Stop Leak is suitable for closed cooling systems.


Application Notes


RAVENOL Professional Radiator Stop Leak is added to the radiator. If there are filters in the cooling system, a radiator jointing material may not be used.

Area of application:

  • Severe sweating of cylinder head gaskets
  • Leaky hose connections
  • Hairline cracks in the radiator, cylinder head or engine block

Application: RAVENOL Professional Radiator Stop Leak suffices for 10 l of coolant. Open the heating valve completely. The engine should be at operating temperature.

Shake the can and fill the content into the cooling system with the engine running. Add coolant.

After filling, allow the engine to continue to run for at least 10 min. or take a test drive. Check the system’s coolant level, absence of air and leak tightness.

For lorry radiators mix ratio max. 1:100.

RAVENOL Professional Radiator Stop Leak is also suitable for closed cooling systems.

Quality Classifications


RAVENOL Professional Radiator Stop Leak is completely compatible with anti-freeze agents and coolants. RAVENOL Professional Radiator Stop Leak is neutral in regard to rubber, synthetic materials, light alloys and non-ferrous metals.



RAVENOL Professional Radiator Stop Leak provides:

  • Protection against sweating cylinder head gaskets
  • Sealing of hairline cracks and leaks in the cooling system


Characteristics Unit Data Audit
Smell   citrus -
Colour   grünblau visual
Density at 20°C kg/m³ 1020 EN ISO 12185
pH-Value   9,5 DIN 19268

All indicated data are approximate values and are subject to the commercial fluctuations.



300 ml|1390301-300

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